Great fun & Educational App!
Ive been a musician off and on for over 40 years, including as a double instrument music major in college (then switched and graduated as an Electronics Engineer, as it pays more). I can read music, but never could sight read real well, nor remember all the chord progressions and variations when composing - this great App puts it all right in front of me, at the touch of a button I can see & hear any idea, in any key Im trying to work on!
MasterOfMadness about
Cheeky Fingers - Piano Chord Dictionary, Progressions and Suggestions