Diki,

The SA voices in the S900 are identical to the ones in the Tyros2...there just aren't as many of them.

There is also a really cool SA Steel String.

The SA Concert Guitar on the S900 was one of the reasons I upgraded from my 3k...the SA Sax was another reason.

Having a voice distinguish whether you play legato or staccato (or read the intervals you play) and respond in an authentic and musical way is way cool.

Ian