🎸 Jimi

A command line utility written in Go to display guitar fretboard, scales and chords in any tuning.

Because I love Go, CLIs and guitar (and Hendrix obviously!)

Build

Jimi does not require any specific package or dependency and can be compiled on Linux, macOS or Windows.

If you do not have Go installed yet, you know what to do.

Just git clone this repo and run go build in a terminal from the root directory.

Usage

Note for Windows users: The Windows Console may not output colored characters properly. You may use PowerShell instead.

Display the fretboard

Standard tuning and no capo.

jimi

Complete example

Open D tuning, G chord shapes with capo on 5th fret.

jimi -t=DADF#AD -r=G -p=triad -c=5

Custom tuning

Specify the string notes with -t from the lowest to the highest string.

Jimi accepts both the sharp and flat notation. However, flats are converted to their sharp equivalent.

jimi -t=EbAbDbGbBbEb

Put a capo

Specify the fret position with -c.

jimi -c=4

Display a scale using a preset pattern

Specify the key with -r and the scale pattern with -p.

Scale preset patterns are:

• aeolian
• dorian
• ionian
• locrian
• lydian
• major
• major-blues
• major-pentatonic
• minor
• minor-blues
• minor-pentatonic
• mixolydian
• phrygian

jimi -r=G# -p=minor-pentatonic 

Display chord shapes using a preset pattern

Specify the root note with -r and the chord pattern with -p.

Chord preset patterns are:

• 5th
• aug
• dim
• m7b5
• major-6th
• major-7th
• major-maj7
• major-triad
• minor-6th
• minor-7th
• minor-maj7
• minor-triad
• sus
• sus2
• sus4

jimi -r=A -p=major-triad

Display a custom scale or chord shapes using intervals

Specify the root note with -r and dash-separated list of intervals with -p.

jimi -r=C -p=1-3-5-b7

License

The MIT License (MIT). Please see License File for more information.

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If Jimi Hendrix was a developer, he would have written Foxey Lady in Go, not C#!