Mozart: Piano Concerto No. 15 in B-Flat Major, K. 450 - I. Allegro Featuring 3 source recordings: 1st sample: Richard Clayton, Passionata Symphony Orchestra. More information unknown. 2nd sample: Willem van Hoogstraten (conductor), Elly Ney (pianist), orchestra unknown, 1935. 3rd sample: Ettore Gracis (conductor), Arturo Benedetti Michelangeli (pianist), Orchestra i Pomeriggi Musicali, 1951. 3 samples, with fade work.