Bassist Buddy

Bassist Buddy is a music theory reference and practice tool built for bass guitar players.

Select any of 30 major and minor keys — including all enharmonic pairs — and instantly see the notes in the key, the 7 diatonic chords, and a bass fretboard diagram showing exactly where to play them.

Key Features:
• Circle of fifths with all 30 keys — tap any segment to select
• Diatonic chords with chord quality labels and Roman numeral analysis
• Chord enhancements — Major 7, Minor 7, Dominant 7, Sus chords, Diminished, Augmented and more
• Bass fretboard showing all chord tones and scale notes in position, tap fretboard dots to hear individual bass notes and try out different base lines in the app
• 7 modes — Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian
• Chord Progression builder — arrange a progression of 4, 8, 12, or 16 bars, set rhythm patterns, play at any tempo - play your bass along with the progressions and practice your improvisational skills
• Karplus-Strong plucked string audio synthesis
• Setup Bass page, including
- Support for a 5 and 6-string basses in a new Set up Your Bass page
- Custom tuning support per string
• Full dark mode support
• Support for pentatonic scales on the fretboard
• Consistent nomenclature for the degrees shown on each of the scale notes for a chord being displayed. Root of selected chord is always 1, regardless of its degree in the Diatonic Scale.
• Scale display selection in the chord progression table