HandDee Electronic Organ & Piano Chords 1.0.0
the author of this app says:
This virtual piano incorporates a polyphonic synthesis engine. It emulates the keyboard with loudness controls and realistic chord sounds. It also includes a chord dictionary and glossary of musical terms.
Features include a 48-key, four-octave polyphonic AI keyboard, note and single-key chord synthesis functions, and one-touch chord playing.