Hi Eric. I would definitely be interested in purchasing a '76 note' Tyros Pro, but only if its weight & dimensions are no more than the current 76 note Ketron SD1's is:

16.5 kg (36.5 lbs)
119 x 19 12 cms (46.85" x 7.48" x 4.72" inches)

The SD1 definitely has the best weight-size ratio of all 76 note arrangers out there for sure. Too bad for its weakness' in other key areas.

In fact, I believe the CURRENT 61 note Tyros' shell casing may already be sufficiently long enough (in length) to accomodate 76 keys if:

1) the floppy disk tray is completely eliminated,

and

2) the pitch bend & mod wheels are simply relocated to somewhere above the keys.

This would maintain the dimensions of the current Tyros, and help keep excessive weight of a 76 note kb down as well.

For strictly auto accomp arranger mode playing, 61 keys is really all anyone needs, but for SOLO piano style playing, a minimum of 76 keys along with a more weighted key feel is mandatory.

Whether Yamaha really cares about my opinion or not on this, I don't know, but for what it's worth, I thought it was worth sharing with you guys.

Scott