My Piano Assistant is a reference book of chords (with all inversions), scales and intervals. Given the name of an item and a root, the app shows the item formula, symbol (for chords and intervals), the sequence of notes and their positions on the piano keyboard. It also allows to listen to a selected item.
* ~40 chords with all inversions
* ~170 scales
* ~30 intervals
* user-defined chords, scales and intervals
* item playback