Most of the Midi accordianists and midi guitarists that buy Ketron arrangers need single finger chords...they would have to have very versatile toes otherwise. But your right about the Tyros; here in the UK it is unashamedly marketed to the ex home organists. Korg PA series sell well to the Oriental/Asian players and Roland appear to have dropped out of the scene a little and dropped arrangers in favour of the Atelier Organs.