The Piano Concerto entitled Oceans Apart was written by New York-native composer Justin Dello Joio (the son of the celebrated American composer Norman Dello Joio, 1913-2008, who won a Pulitzer Prize in 1957 for his Meditations on Ecclesiastes) for Garrick Ohlsson, who preceded the composer by a few years at the school and who, in 1970, received worldwide attention as the first (and to date only) American to win the International Chopin Piano Competition.
More about the Concerto at BSO website.