A FREE Educational and Fun App to learn to play the Piano Accordion complete with 120 Bass Buttons! • Genuine Accordion Sounds Professionally Recorded from a Real Leading Brand Accordion with the Best Possible Quality. • Super-responsive, plays like a Real Button Accordion! • 45 Treble Keys and Full 120 Bass Buttons • 5 Register Sounds for Trebles • The best Tutorial Collection for Songs on the Piano Accordion • Option to Display 120, 96, 80, 72, 60, 48, 32, 16 or 12 Bass Buttons • Buttons 'Lig