The product is a simplified piano arrangement sheet music for the musical "West Side Story" by William Stickles, published by G. Schirmer in 1961. This sheet music is specifically designed for piano players, making it easier for them to play the music from the musical. It falls under the genre of Musicals and has a unit quantity of 1. This vintage and antique sheet music allows musicians to play iconic songs from the classic musical in a simplified format, making it accessible to a wider range of piano players.