Well, if you are looking for a Telmo-like demo, best of luck! To be honest, as fine as Telmo's demos are, they AREN'T representative of what a T4 can do OOTB, usually. Telmo makes extensive use of custom samples, and sampled multipads, something, TBH, few do around here.

Telmo's dedication to getting the most out of his T4 isn't typical, and, to be fair, if a Korg or Ketron or Roland were demoed in this fashion, the Yamaha evangelists would be all over it, saying 'this isn't what comes with the arranger', blah, blah, blah, yada, yada, yada...

As far as we know, no-one even HAS a PA3x yet, certainly no-one here. T4 has got a year's worth of head start on the Korg. Don't you guys ever take even THAT into consideration? Tell you what.... Why not give it a rest for a while, and let's revisit this after some PA3's actually get into USER'S hands for a few months.

Try Goggling trade show videos of the T4 at its launch... plenty of VERY unimpressive stuff. The good stuff came later (at least user stuff). Give every OTHER arranger the same slack you cut Yamaha. I don't recall anyone bitching about how few good user demos there were before anyone even HAD one, here.

Do you?