Yamaha's forthcoming "hybrid" Avant Grand may not set you back quite as far as, say, a Hamburg Steinway Model D-274, but it still ain't priced for amateur budgets. The piece was engineered to be around half the size and a third of the weight of a real-deal nine foot acoustic grand piano, all while maintaining the same heralded feel and sound. Dubbed a "hybrid" grand, this thing not only has four speakers that envelope the player in audio, but even the keys trigger a hammer that strikes a bar in order to replicate the feel of slamming a chord on one of the world's most prized instruments. The good news is that you can get 99 perc