Composer's Friend

• Circle of Fifths

• Chord Progressions

• Chord Builder

• Chord Player

• Keyboard

• Guitar

• Bass

• Options

  Play sound

  Use MIDI output

• About

  Composer's Friend is a a JavaScript library for helping you practice playing guitar and piano and composing chord progressions. The library can be tailored to other fretboard and keyboard note visualization applications and has advanced features, such as MIDI connectivity. This is an example application created by using all of the library's functions.

  © 2017-2019 Aleksei Tepljakov. Some documentation can be found in the blog post. More documentation will follow.