Piano Companion: chord & scale dictionary with chord progression builder

[erikfros]

Hey guys,

We continue growing Piano Companion and added lots of useful features such as smart reverse chord/scale lookup, relative chords in progressions, common chords and so on. However, we need your help, how do you think what the features are missing over here which could be helpful for musicians?

Url: http://pianocompanion.info/app/kvr

Thanks in advance!