{"id":2214868,"date":"2026-08-02T07:23:40","date_gmt":"2026-08-02T05:23:40","guid":{"rendered":"https:\/\/twelve-assistant.com\/twelve-assistant-v2-presentation-guitar-harmony-assistant\/bass-guitar-tool\/"},"modified":"2026-08-02T07:23:40","modified_gmt":"2026-08-02T05:23:40","slug":"bass-guitar-tool","status":"publish","type":"page","link":"https:\/\/twelve-assistant.com\/en\/twelve-assistant-v2-presentation-guitar-harmony-assistant\/bass-guitar-tool\/","title":{"rendered":"Bass Guitar Tool: Scales, Chords &#038; Fretboard"},"content":{"rendered":"\n<style>\n.tseo{--night:#0a0d14;--panel:#141b2e;--panel2:#1b2440;--gold:#e8a54b;--gold2:#f3c37e;--ink:#f7f5f0;--muted:#c8cfdd;background:var(--night);color:var(--ink);font-family:Inter,system-ui,sans-serif;line-height:1.7}\n.tseo *{box-sizing:border-box}.tseo a{color:inherit}.tseo .wrap{width:min(1120px,calc(100% - 40px));margin:auto}.tseo .hero{padding:92px 0 58px;background:radial-gradient(circle at 78% 8%,rgba(232,165,75,.2),transparent 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.grid,.tseo .steps{grid-template-columns:1fr 1fr}.tseo .cols{grid-template-columns:1fr}.tseo .related{grid-template-columns:1fr 1fr}.tseo .hero{padding-top:64px}.tseo .slide-placeholder{min-height:300px}.tseo .slide-image{height:clamp(240px,40vh,360px)}}\n@media(max-width:520px){.tseo .grid,.tseo .steps,.tseo .related{grid-template-columns:1fr}.tseo .wrap{width:min(100% - 28px,1120px)}.tseo .slide-image{height:250px}.tseo .slide figcaption{padding:16px 18px}.tseo .slider-controls>span{width:100%;text-align:center}.tseo .slider-next{margin-left:2px}}\n<\/style>\n<article class=\"tseo\" data-seo-page=\"bass-guitar-tool\">\n  <header class=\"hero\"><div class=\"wrap\">\n    <div class=\"crumb\"><a href=\"https:\/\/twelve-assistant.com\/en\/twelve-assistant-v2-presentation-guitar-harmony-assistant\/\">Twelve Assistant<\/a> \/ Bass Tools<\/div>\n    <div class=\"eyebrow\">Bass Guitar Tool<\/div>\n    <h1>Visualize bass guitar scales and chords on your fretboard<\/h1>\n    <p class=\"lead\">Work with notes, intervals, scales and chords on 4-string, 5-string or 6-string bass, with standard tuning or your own custom configuration.<\/p>\n    <div class=\"actions\">\n      <a class=\"btn\" href=\"https:\/\/twelve-assistant.com\/en\/twelve-assistant-v2-free-demo\/?utm_source=site&#038;utm_medium=seo-page&#038;utm_campaign=bass-guitar-tool-en&#038;utm_content=hero-signup\" data-track=\"wp-cta-seo-bass-guitar-tool-hero-signup\">Start free account<\/a>\n      <a class=\"btn alt\" href=\"#video-features\" data-track=\"wp-cta-seo-bass-guitar-tool-hero-video\">Watch feature video<\/a>\n      <a class=\"btn alt\" href=\"https:\/\/twelve-assistant.com\/en\/twelve-assistant-v2-presentation-guitar-harmony-assistant\/guitar-harmony-assistant-pricing\/?utm_source=site&#038;utm_medium=seo-page&#038;utm_campaign=bass-guitar-tool-en&#038;utm_content=hero-pricing#standalone\" data-track=\"wp-cta-seo-bass-guitar-tool-hero-pricing\">View pricing<\/a>\n    <\/div>\n  <\/div><\/header>\n\n  <section><div class=\"wrap\">\n    <div class=\"capture-slider\" data-capture-slider=\"bass-guitar-tool\">\n      <h2 style=\"text-align:center\">Explore the features in screenshots<\/h2>\n      <p class=\"slider-intro\">Browse the main tools of Twelve Assistant in this instrument configuration.<\/p>\n      <input class=\"slider-radio\" type=\"radio\" name=\"bass-guitar-tool-slider\" id=\"bass-guitar-tool-slide-0\" checked><input class=\"slider-radio\" type=\"radio\" name=\"bass-guitar-tool-slider\" id=\"bass-guitar-tool-slide-1\"><input class=\"slider-radio\" type=\"radio\" name=\"bass-guitar-tool-slider\" id=\"bass-guitar-tool-slide-2\"><input class=\"slider-radio\" type=\"radio\" name=\"bass-guitar-tool-slider\" id=\"bass-guitar-tool-slide-3\"><input class=\"slider-radio\" type=\"radio\" name=\"bass-guitar-tool-slider\" id=\"bass-guitar-tool-slide-4\"><input class=\"slider-radio\" type=\"radio\" name=\"bass-guitar-tool-slider\" id=\"bass-guitar-tool-slide-5\">\n      <div class=\"slider-viewport\">\n        <div class=\"slider-track\">\n          <figure class=\"slide\" aria-hidden=\"false\"><img fetchpriority=\"high\" width=\"2560\" height=\"1427\" class=\"slide-image wp-image-2214720\" src=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-01-manche-basse-4-cordes-scaled.png\" alt=\"4-string bass fretboard with notes and intervals\" loading=\"eager\" decoding=\"async\" data-media-id=\"2214720\" srcset=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-01-manche-basse-4-cordes-scaled.png 2560w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-01-manche-basse-4-cordes-300x167.png 300w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-01-manche-basse-4-cordes-1024x571.png 1024w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-01-manche-basse-4-cordes-768x428.png 768w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-01-manche-basse-4-cordes-1536x856.png 1536w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-01-manche-basse-4-cordes-2048x1141.png 2048w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-01-manche-basse-4-cordes-530x295.png 530w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-01-manche-basse-4-cordes-600x334.png 600w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><figcaption><strong>The 4-string bass fretboard<\/strong><span>Visualize notes and intervals on a bass tuned to E A D G, with display adapted to the instrument range.<\/span><\/figcaption><\/figure><figure class=\"slide\" aria-hidden=\"true\"><img width=\"2560\" height=\"1935\" class=\"slide-image wp-image-2214722\" src=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-02-bibliotheque-accords-accordage-basse-scaled.png\" alt=\"Bass chord library and custom tuning\" loading=\"lazy\" decoding=\"async\" data-media-id=\"2214722\" srcset=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-02-bibliotheque-accords-accordage-basse-scaled.png 2560w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-02-bibliotheque-accords-accordage-basse-300x227.png 300w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-02-bibliotheque-accords-accordage-basse-1024x774.png 1024w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-02-bibliotheque-accords-accordage-basse-768x580.png 768w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-02-bibliotheque-accords-accordage-basse-1536x1161.png 1536w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-02-bibliotheque-accords-accordage-basse-2048x1548.png 2048w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-02-bibliotheque-accords-accordage-basse-530x401.png 530w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-02-bibliotheque-accords-accordage-basse-600x453.png 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption><strong>The bass chord library<\/strong><span>Browse available chords for your selected bass tuning and access matching positions.<\/span><\/figcaption><\/figure><figure class=\"slide\" aria-hidden=\"true\"><img width=\"2560\" height=\"1806\" class=\"slide-image wp-image-2214724\" src=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-03-generateur-suite-accords-basse-scaled.png\" alt=\"Chord progression generator for bass\" loading=\"lazy\" decoding=\"async\" data-media-id=\"2214724\" srcset=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-03-generateur-suite-accords-basse-scaled.png 2560w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-03-generateur-suite-accords-basse-300x212.png 300w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-03-generateur-suite-accords-basse-1024x722.png 1024w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-03-generateur-suite-accords-basse-768x542.png 768w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-03-generateur-suite-accords-basse-1536x1084.png 1536w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-03-generateur-suite-accords-basse-2048x1445.png 2048w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-03-generateur-suite-accords-basse-530x374.png 530w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-03-generateur-suite-accords-basse-600x423.png 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption><strong>The chord progression generator<\/strong><span>Create a harmonic progression, listen to its movement and use it as context to build your bass line.<\/span><\/figcaption><\/figure><figure class=\"slide\" aria-hidden=\"true\"><img width=\"2560\" height=\"1543\" class=\"slide-image wp-image-2214726\" src=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-04-bibliotheques-arpeges-accords-gammes-basse-scaled.png\" alt=\"Arpeggio, chord and scale libraries for bass\" loading=\"lazy\" decoding=\"async\" data-media-id=\"2214726\" srcset=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-04-bibliotheques-arpeges-accords-gammes-basse-scaled.png 2560w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-04-bibliotheques-arpeges-accords-gammes-basse-300x181.png 300w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-04-bibliotheques-arpeges-accords-gammes-basse-1024x617.png 1024w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-04-bibliotheques-arpeges-accords-gammes-basse-768x463.png 768w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-04-bibliotheques-arpeges-accords-gammes-basse-1536x926.png 1536w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-04-bibliotheques-arpeges-accords-gammes-basse-2048x1234.png 2048w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-04-bibliotheques-arpeges-accords-gammes-basse-530x319.png 530w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-04-bibliotheques-arpeges-accords-gammes-basse-600x362.png 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption><strong>Arpeggios, chords and scales<\/strong><span>Browse essential music libraries to work with arpeggios, chords and scales on your bass.<\/span><\/figcaption><\/figure><figure class=\"slide\" aria-hidden=\"true\"><img width=\"2560\" height=\"1863\" class=\"slide-image wp-image-2214728\" src=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-05-recherche-gamme-accord-manche-basse-scaled.png\" alt=\"Scale and chord search from bass fretboard\" loading=\"lazy\" decoding=\"async\" data-media-id=\"2214728\" srcset=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-05-recherche-gamme-accord-manche-basse-scaled.png 2560w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-05-recherche-gamme-accord-manche-basse-300x218.png 300w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-05-recherche-gamme-accord-manche-basse-1024x745.png 1024w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-05-recherche-gamme-accord-manche-basse-768x559.png 768w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-05-recherche-gamme-accord-manche-basse-1536x1118.png 1536w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-05-recherche-gamme-accord-manche-basse-2048x1490.png 2048w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-05-recherche-gamme-accord-manche-basse-530x386.png 530w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-05-recherche-gamme-accord-manche-basse-600x437.png 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption><strong>Search from fretboard<\/strong><span>Select notes on the fretboard to identify matching scales and chords.<\/span><\/figcaption><\/figure><figure class=\"slide\" aria-hidden=\"true\"><img width=\"2560\" height=\"1767\" class=\"slide-image wp-image-2214730\" src=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-06-superposition-gamme-accord-manche-basse-scaled.png\" alt=\"Overlaying scale and chord on bass fretboard\" loading=\"lazy\" decoding=\"async\" data-media-id=\"2214730\" srcset=\"https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-06-superposition-gamme-accord-manche-basse-scaled.png 2560w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-06-superposition-gamme-accord-manche-basse-300x207.png 300w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-06-superposition-gamme-accord-manche-basse-1024x707.png 1024w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-06-superposition-gamme-accord-manche-basse-768x530.png 768w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-06-superposition-gamme-accord-manche-basse-1536x1060.png 1536w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-06-superposition-gamme-accord-manche-basse-2048x1414.png 2048w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-06-superposition-gamme-accord-manche-basse-530x366.png 530w, https:\/\/twelve-assistant.com\/wp-content\/uploads\/2026\/07\/ta-seo-06-superposition-gamme-accord-manche-basse-600x414.png 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption><strong>Overlay scale and chord<\/strong><span>Compare scale and chord notes directly on the fretboard to understand their harmonic relationship.<\/span><\/figcaption><\/figure>\n        <\/div>\n      <\/div>\n      <div class=\"slider-controls\">\n        <span>Choose a screenshot<\/span>\n        <div class=\"slider-dots\" aria-label=\"Choose a screenshot\"><label class=\"slider-dot\" for=\"bass-guitar-tool-slide-0\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-1\" aria-label=\"Show screenshot 1\"><\/label><label class=\"slider-dot\" for=\"bass-guitar-tool-slide-1\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-2\" aria-label=\"Show screenshot 2\"><\/label><label class=\"slider-dot\" for=\"bass-guitar-tool-slide-2\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-3\" aria-label=\"Show screenshot 3\"><\/label><label class=\"slider-dot\" for=\"bass-guitar-tool-slide-3\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-4\" aria-label=\"Show screenshot 4\"><\/label><label class=\"slider-dot\" for=\"bass-guitar-tool-slide-4\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-5\" aria-label=\"Show screenshot 5\"><\/label><label class=\"slider-dot\" for=\"bass-guitar-tool-slide-5\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-6\" aria-label=\"Show screenshot 6\"><\/label><\/div>\n        <label class=\"slider-next slider-next-0\" for=\"bass-guitar-tool-slide-1\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-next-1\">Next<\/label><label class=\"slider-next slider-next-1\" for=\"bass-guitar-tool-slide-2\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-next-2\">Next<\/label><label class=\"slider-next slider-next-2\" for=\"bass-guitar-tool-slide-3\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-next-3\">Next<\/label><label class=\"slider-next slider-next-3\" for=\"bass-guitar-tool-slide-4\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-next-4\">Next<\/label><label class=\"slider-next slider-next-4\" for=\"bass-guitar-tool-slide-5\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-next-5\">Next<\/label><label class=\"slider-next slider-next-5\" for=\"bass-guitar-tool-slide-0\" data-track=\"wp-cta-seo-bass-guitar-tool-slider-next-6\">Next<\/label>\n      <\/div>\n    <\/div>\n  <\/div><\/section>\n\n  <section class=\"alt\"><div class=\"wrap\">\n    <h2>Display designed for the bass role<\/h2>\n    <div class=\"intro\"><p>Bass players need to connect roots, chord tones and passing notes quickly. Twelve Assistant displays this information directly on a bass fretboard, with clear interval reading and available positions.<\/p><p>You can start from a scale, mode or chord, then observe useful notes across the entire neck. Playback, zone selection and visual customization features turn theoretical information into practical exercises.<\/p><p>Standard E A D G tuning is available, along with 5-string bass, 6-string bass and custom tunings. The same environment serves daily practice, harmonic analysis and bass line preparation.<\/p><\/div>\n  <\/div><\/section>\n\n  <section><div class=\"wrap\">\n    <h2>Tools to build coherent bass lines<\/h2>\n    <div class=\"grid\"><div class=\"card\"><h3>Bass fretboard<\/h3><p>Display adapted to a 4-string bass, 5-string bass, 6-string bass or a custom configuration.<\/p><\/div><div class=\"card\"><h3>Roots and scale degrees<\/h3><p>Spot the tonic, thirds, fifths, sevenths and extensions immediately.<\/p><\/div><div class=\"card\"><h3>Scales and modes<\/h3><p>Visualize available notes and playing zones across the full range.<\/p><\/div><div class=\"card\"><h3>Chords and arpeggios<\/h3><p>Study chord tones and their inversions on the fretboard.<\/p><\/div><div class=\"card\"><h3>Left-handed mode<\/h3><p>Display the fretboard in the orientation matching your instrument.<\/p><\/div><div class=\"card\"><h3>Music Stand<\/h3><p>Organize your positions, progressions and practice notes.<\/p><\/div><\/div>\n  <\/div><\/section>\n\n  <section class=\"alt\" id=\"4-5-6-string-bass\"><div class=\"wrap\">\n    <h2>4-string, 5-string or 6-string bass and custom tuning<\/h2>\n    <div class=\"intro\"><p>Start with a 4-string bass in E A D G, add a low B string for a 5-string bass in B E A D G, or configure a 6-string bass in B E A D G C. You choose the string count and the open note for each one.<\/p><p>You can also create your own bass tuning for a song, an additional high string, a Drop configuration or a custom luthier instrument. Scales, chord notes, intervals and positions are recalculated for this specific neck.<\/p><p>The chord library, arpeggios, chord progression generator and fretboard displays remain accessible with these configurations. Left-handed mode can also be applied without changing the tuning.<\/p><\/div>\n  <\/div><\/section>\n\n  <section class=\"alt\"><div class=\"wrap\">\n    <h2>Connect harmony, rhythm and positions<\/h2>\n    <div class=\"cols\"><div class=\"box\"><p>An effective bass line goes beyond the root. By displaying each chord&#8217;s intervals and the key&#8217;s notes, you can prepare stepwise motion, chromatic approaches and position changes without losing the harmonic context.<\/p><\/div><div class=\"box\"><p>The chord progression generator and editors give structure to your work. You can test a progression, spot common tones between two chords and save useful positions in the Music Stand for rehearsal.<\/p><\/div><\/div>\n  <\/div><\/section>\n\n  <section><div class=\"wrap\">\n    <h2>Advanced features around your tuning<\/h2>\n    <div class=\"grid\">\n      <div class=\"card\"><h3>Scale and chord libraries<\/h3><p>Start from a key, mode or chord, then display musical information on your fretboard&#8217;s actual configuration.<\/p><\/div>\n      <div class=\"card\"><h3>Chord progressions<\/h3><p>Create a chord sequence, listen to its movement and search for positions or voicings adapted to your instrument and tuning.<\/p><\/div>\n      <div class=\"card\"><h3>Personal Music Stand<\/h3><p>Gather useful diagrams, positions and analyses in a practice sheet you can organize according to your workflow.<\/p><\/div>\n    <\/div>\n  <\/div><\/section>\n\n  <section class=\"alt\"><div class=\"wrap\">\n    <h2>Display everything left-handed<\/h2>\n    <div class=\"cols\"><div>\n      <p>String count and tuning are independent from orientation. You can therefore keep exactly the same musical configuration and display the fretboard mirrored for a left-handed instrument.<\/p>\n      <p>When the left-handed preference is saved in your profile, compatible fretboard and diagram displays automatically apply it. The setting remains adjustable at any time.<\/p>\n    <\/div><div class=\"box\"><h3>A preference that follows you<\/h3><p>Choose right or left-handed once in your preferences. The fretboard keeps the same tuning and only adapts its visual orientation.<\/p><p>This preference then applies to fretboard displays and compatible diagrams.<\/p><\/div><\/div>\n  <\/div><\/section>\n\n  <section><div class=\"wrap\">\n    <h2>A simple path to work on a progression<\/h2>\n    <p class=\"intro\">Select your bass and its tuning, choose the key, then display the scale or the progression&#8217;s chords. Narrow down the fretboard zone to the position you want to practice and listen to the notes before playing.<\/p>\n    <div class=\"steps\">\n      <div class=\"step\"><h3>Choose instrument<\/h3><p>Define string count, tuning and orientation.<\/p><\/div>\n      <div class=\"step\"><h3>Display content<\/h3><p>Select a scale, chord or progression and choose visible information.<\/p><\/div>\n      <div class=\"step\"><h3>Save results<\/h3><p>Listen, compare and place your useful diagrams in the Music Stand.<\/p><\/div>\n    <\/div>\n  <\/div><\/section>\n\n  <section class=\"alt\" id=\"video-features\"><div class=\"wrap\">\n    <h2>Discover all features in video<\/h2>\n    <p class=\"intro\">See how Twelve Assistant connects fretboard, scale and chord libraries, voicings, progressions and Music Stand in a single workspace.<\/p>\n    <div class=\"video-frame\">\n      <iframe loading=\"lazy\" title=\"Twelve-Assistant 2026 - Aper\u00e7u des fonctionnalit\u00e9s\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/of5JL217De0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n    <\/div>\n  <\/div><\/section>\n\n  <section><div class=\"wrap\">\n    <h2>Frequently asked questions<\/h2>\n    <details><summary>Can I display a 4-string bass?<\/summary><p>Yes, with standard E A D G tuning or custom tuning.<\/p><\/details><details><summary>Is the 5-string bass supported?<\/summary><p>Yes. You can use B E A D G tuning with the low B string or define your own notes.<\/p><\/details><details><summary>Can I configure a 6-string bass?<\/summary><p>Yes. The B E A D G C configuration is possible, as is any other custom bass tuning.<\/p><\/details><details><summary>Can I display only intervals?<\/summary><p>Yes. Display options let you favor notes, intervals or a custom presentation.<\/p><\/details><details><summary>Does left-handed mode work for bass?<\/summary><p>Yes. The orientation can be adapted for left-handed bass players in compatible displays.<\/p><\/details>\n  <\/div><\/section>\n\n  <section><div class=\"wrap\">\n    <h2>Explore other instruments and tunings<\/h2>\n    <div class=\"related\"><a href=\"https:\/\/twelve-assistant.com\/en\/twelve-assistant-v2-presentation-guitar-harmony-assistant\/left-handed-guitar\/\" data-track=\"wp-cta-seo-bass-guitar-tool-related-left-handed\">Left-handed guitar<\/a><a href=\"https:\/\/twelve-assistant.com\/en\/twelve-assistant-v2-presentation-guitar-harmony-assistant\/banjo-chords-scales\/\" data-track=\"wp-cta-seo-bass-guitar-tool-related-banjo\">5-string banjo<\/a><a href=\"https:\/\/twelve-assistant.com\/en\/twelve-assistant-v2-presentation-guitar-harmony-assistant\/ukulele-chords-scales\/\" data-track=\"wp-cta-seo-bass-guitar-tool-related-ukulele\">Ukulele<\/a><a href=\"https:\/\/twelve-assistant.com\/en\/twelve-assistant-v2-presentation-guitar-harmony-assistant\/7-string-guitar\/\" data-track=\"wp-cta-seo-bass-guitar-tool-related-7string\">7-string guitar<\/a><\/div>\n  <\/div><\/section>\n\n  <section class=\"final\"><div class=\"wrap\">\n    <h2>Try Twelve Assistant with your instrument<\/h2>\n    <p class=\"lead\" style=\"margin-inline:auto\">Start for free, watch the feature video or compare plans based on your needs.<\/p>\n    <div class=\"actions\">\n      <a class=\"btn\" href=\"https:\/\/twelve-assistant.com\/en\/twelve-assistant-v2-free-demo\/?utm_source=site&#038;utm_medium=seo-page&#038;utm_campaign=bass-guitar-tool-en&#038;utm_content=final-signup\" data-track=\"wp-cta-seo-bass-guitar-tool-final-signup\">Start free account<\/a>\n      <a class=\"btn alt\" href=\"#video-features\" data-track=\"wp-cta-seo-bass-guitar-tool-final-video\">Watch features<\/a>\n      <a class=\"btn alt\" href=\"https:\/\/twelve-assistant.com\/en\/twelve-assistant-v2-presentation-guitar-harmony-assistant\/guitar-harmony-assistant-pricing\/?utm_source=site&#038;utm_medium=seo-page&#038;utm_campaign=bass-guitar-tool-en&#038;utm_content=final-pricing#standalone\" data-track=\"wp-cta-seo-bass-guitar-tool-final-pricing\">View pricing<\/a>\n    <\/div>\n  <\/div><\/section>\n<\/article>\n\n","protected":false},"excerpt":{"rendered":"<p>Twelve Assistant \/ Bass Tools Bass Guitar Tool Visualize bass guitar scales and chords on your fretboard Work with notes, intervals, scales and chords on 4-string, 5-string or 6-string bass, with standard tuning or your own custom configuration. Start free account Watch feature video View pricing Explore the features in screenshots Browse the main tools [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2210539,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"tpl-cours.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-2214868","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bass Guitar Tool: Scales, Chords &amp; Fretboard<\/title>\n<meta name=\"description\" content=\"Full 4-string and 5-string bass support. 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