I dont normally write reviews.

In this case I had to because this is a great tool for people that like simplicity. Great design with all the tools needed to write amazing music. Better than other chord/progression apps.

Suggestions:
I would like to see some blues and jazz progressions.
Ability to have progressions playing while I exit the app and try to play a melody on another app. Audio bus support?
Some drums to go along with progression.

AppReviewer2012 about Cheeky Fingers - Piano Chord Dictionary, Progressions and Suggestions