The tall, vertically strung upright grand was arranged like a grand intent on end, with Grand Piano Covers the soundboard and bridges above the keys, and tuning pins below them. The phrase was later revived by alive with manufacturers for advertising purposes. Giraffe, pyramid and lyre pianos were arranged in a somewhat collateral fashion in evocatively shaped cases.

• Since this sympathetic vibration is designful central to piano tone, many digital pianos do not sound the same as the best audile pianos

• Progress is being made in this outline by including physical models of sympathetic vibration in the synthesis software
• Some higher prong digital pianos, such as the Yamaha Clavinova series, produced in the last few years incorporate string resonance technology to overcome this limitation.