RMCA Pro, Jam partner and MAAS are MIDI auto-accompaniment systems which have all major features of a high-quality MIDI keyboard (chord recognition, based auto arranger with recording section, up to 16 fingered and 10 two-finger chord types, flexible controls, chord progression function, circle of fifth function and much more). In addition, a unique feature of RMCA Pro is its ability to create an accompaniment style from virtually any MIDI input (midifile or live music)