Five years ago, Yamaha charged its designers with the task of creating the playing experience of a $125,000 nine-foot concert grand piano on an instrument one-half the size and less than one-fifth the price. The result? The Yamaha AvantGrand Hybrid Piano, the first stringless piano ever crafted to feature the sound, touch, and action of a concert grand piano—without the cost, tuning, or footprint of a traditional acoustic instrument. Beyond sounding as beautiful as it looks, it is the world’s only electronic piano to offer the physical resonance and vibration integral to the true playing experience. Available at Frank & Camille’s in Hartsdale, $19,000.