In 1973, Daniell Revenaugh became the first director of the Institute For Advanced Music Study in Crans-Montana, Switzerland. He invented and patented a Lower Lid for the grand piano which projects the sound more efficiently. Various established pianists, such as Martha Argerich, Peter Serkin, André Watts, Radu Lupu and Alexander Toradze, had been using it during concerts. Daniell also patented a muting device for grand pianos to isolate downstairs neighbors from the noise.
Revenaugh owns an extensive collection of pianos, including Erard instrument used by Franz Liszt at the first solo piano recital in 1848 and autographed by the legendary composer.