Learning to play chords so well that you cannot get them wrong is entirely a practical and not a theoretical skill. Scan the sheet music you would love to learn and watch as the app identifies the chord symbols and uses them to create a flash card deck. Then play the chords on your very own electronic piano keyboard and be guided on the correct notes and inversions when you struggle with mistakes. — Proven to work with Yamaha, Korg, Casio, Roland and others! — Superb chord identification when using printed sheet music; can even handle hand-written chord notations like those found in The Jazz Real Books — Recognition of more than 1,500 chord symbols all playable within an octave - All Triad Types - Major, Minor, Diminished, Augmented, Suspended - All 7th Chord Types - Major, Dominant, Minor, Diminished, Half Diminished - Support for 9ths, 11th and 13ths — Immediate on-screen illustration to guide you on the correct way to play inversions. — Best experienced by connecting your iPad or iPhone directly to your digital piano keyboard using either - Lightning to MIDI Cable USB OTG Type B Cable or - 5 pin din MIDI to OTG to Lightning — Practice your knowledge of chords even when you are traveling and cannot connect to your digital piano keyboard! — Choose the range of pitches you want to practice within in order to improve how to move from one chord to another in the shortest keyboard distance and time possible. — "what gets measured gets perfected" - your play is measured so that you can compare your sessions over time to watch your improvement. — Watch your proficiency increase and response time decrease as you progress to more complex chords … use of more fingers or more black keys!