chu chu lovely muni muni mura mura purin purin boron nururu rero rero

Chord library for guitar, ukulele, bass and banjo — 600+ chords

Common chord progressions with player, analysis and transposition

Key signatures, relative and neighbouring keys, and their diatonic chords

Enharmonic chords: C# = Db, D# = Eb, F# = Gb — same pitch, different spelling