Scales, chords and positions on a 7-string guitar
Extend your fretboard knowledge to the additional low string and work with scales, intervals, chords and voicings on a neck actually configured for seven strings.
Explore the features in screenshots
Integrate the seventh string into your playing
Adding a low B string increases the range, but also changes movement patterns and voicing possibilities. Shapes designed for six strings are no longer enough when you want to use this extension consistently.
Twelve Assistant displays a seven-string fretboard with B E A D G B E tuning or a custom variant. Notes, intervals and positions are calculated for this configuration.
You can prepare a riff, analyze an extended chord, explore a scale across several octaves and compare positions without ignoring the additional string.
Use the full 7-string range
Seven real strings
The fretboard accounts for every string in calculations and display.
Low register
Spot roots and extensions on the B string.
Extended scales
Visualize positions across multiple octaves and zones.
Adapted voicings
Explore chords that use or avoid the additional string.
Alternate tunings
Modify each note for Drop A or a personal configuration.
Left-handed mode
Flip the fretboard orientation while keeping the tuning.
From low riffs to extended chords
The additional string can serve as a simple low extension or become a movement axis. By displaying scale degrees, you see which notes extend a familiar position and how to avoid mechanically duplicating six-string shapes.
For chords, the library and voicing tools let you search for voicings adapted to the range. You can match them to a progression, listen and save useful shapes in the Music Stand.
Advanced features around your tuning
Scale and chord libraries
Start from a key, mode or chord, then display musical information on your fretboard’s actual configuration.
Chord progressions
Create a chord sequence, listen to its movement and search for positions or voicings adapted to your instrument and tuning.
Personal Music Stand
Gather useful diagrams, positions and analyses in a practice sheet you can organize according to your workflow.
Display everything left-handed
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.
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.
A preference that follows you
Choose right or left-handed once in your preferences. The fretboard keeps the same tuning and only adapts its visual orientation.
This preference then applies to fretboard displays and compatible diagrams.
Prepare a 7-string song
Choose B E A D G B E tuning or your Drop, select the key, then narrow the display to the riff zone. Then add the progression’s chords to check roots and common tones.
Choose instrument
Define string count, tuning and orientation.
Display content
Select a scale, chord or progression and choose visible information.
Save results
Listen, compare and place your useful diagrams in the Music Stand.
Discover all features in video
See how Twelve Assistant connects fretboard, scale and chord libraries, voicings, progressions and Music Stand in a single workspace.
Frequently asked questions
Is standard 7-string tuning available?
Yes, the B E A D G B E configuration can be used.
Can I work in Drop A?
Yes. Custom tuning lets you modify the low string or any other string.
Do chords use the seventh string?
Searches and visualizations can account for your chosen configuration and available voicings.
Is left-handed mode compatible?
Yes. The orientation can be adapted without changing the tuning notes.
Explore other instruments and tunings
Try Twelve Assistant with your instrument
Start for free, watch the feature video or compare plans based on your needs.