It does look like the demos are overly laden with vocal styles - which do sound fantastic, but it would be nice to hear some other non-vocal styles.

Without scouring every style on the Data List http://www2.yamaha.co.jp/manual/pdf/emi/english/port/tyros4_en_dl_a0.pdf, I would bet that the T4 has almost all of the styles on the T3, revoiced of course, plus a little over 50 new styles, many of which are vocal based.

Then there are all of the Premium styles available over the internet and probably more coming, so I don't think T4 players will ever be at a loss for styles.

As someone who's not likely to buy a new keyboard until the successor to the S910 comes out, it makes me sad that I will have to wait a year or two for a keyboard that has all of the T3 sounds - and another two to three years for a keyboard that has all of the T4 sounds. So for us in the mid-level keyboard bracket, it's going to be three to five years before we get these new voices. That's too long!

Beakybird