I don't know the PSR 2100, but the vocalist in Tyros2 should be the same as in Tyros(1), except that the mic input is balanced, that should give less noise and thereby make a gathered better performance.
P.S I haven't heard any vocalist who could make a "sound-alike-real-voice-choir" yet
With Tyros2 you have the opportunity to make your own 2.nd voice, recorded from home - I guess I'll use that option later..
Regards..
Chris Hansen/ ChokDK

[This message has been edited by ChokDK (edited 11-20-2005).]