I do like that Yamaha has implemented the Ensemble feature although it's nothing new except to Yamaha. VST's have done this for many years. It adds realism to string and horn sections because it puts them in their appropriate placement and stereo spectrum just like in a real orchestra. I didn't notice any large ensembles used, just quartets which I hope aren't the only available programs. A nice 40 piece or larger orchestra would be fantastic.

Same goes for the audio styles. It would have been a great addition had the feature not been castrated. Why not allow users to record, loop, edit, and playback their own audio styles? Yamaha simply wants to force users to buy styles only from Yamaha. I get that many users will never delve into recording their own audio styles, but for others like Diki, Chony, and myself who learn the ins and outs of our gear, it's a major disappointment.

No Voice Creator is just insane. I'm certain a subsequent software update will allow this feature but not having it right out of the gate was a major oversight.

After listening to most every T5 demo available on high end studio monitors, the differences between the T4 and T5 aren't earth shattering. What I can hear are better AD/DA's on the T5 and improved FX modeling programs. This in and of itself gives the T5 an edge over a T4 albeit slight. I'm certain with some tweaking I could get a T4 to sound nearly identical to a T5. What it really comes down to is are the new features enough to warrant a T4 user upgrading. That's a tough call.

For me a 76 note keyboard is a must so for that feature alone I'd upgrade from a T4 to a T5 if I were so inclined. I find it interesting most of the T5 demos shown are from a T5-76. Offering a 76 note option was very smart on Yamaha's part.