A Roland Model KR-107 Digital Piano was placed in the ophthalmology operating room (OR) from May 2005 to August 2005 at the St. Francis Medical Center, where the study was conducted. [Note: *St.

Concerto for Piano and Orchestra No. 24 in C Minor, K. 491: II. Larghetto Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto Piano Sonata No. 14 in C-Sharp Minor, Op. 27 'Moonlight': I.