This app is an automatic acoustic guitar chords and arpeggios player for singing, playing musical instruments and composing. There are two modes: 1. Button play mode By touching a button, you can play a chord or an arpeggio of the length of one bar. * 15 types of playing patterns of chords and arpeggios * Save and load of groups of chords * Custom chords * Keyboard 2. Sequencer mode Chord progressions you like can be automatically played. * Choice of the numbers of bars from 2, 4, 8, 12 and 16 * 5 types of playing patterns * Save and load of chord progressions * Repeat play * Transposing