Music by John Williams is a documentary celebration of the famous composer and his illustrious body of work. It provides some interesting biographical background information as to how the man was born into a family of talented musicians. It then traces his rise from pianist for hire to the most well known film composer today. Along the way, anyone who is anyone in film and music appears to heap justifiable praise upon him and his body of work. It also features a continuous medley of John Williams’ greatest hits, as it catalogues his work in broadly chronological order. Music by John Williams is an upbeat and positive love letter to the composer and exactly what you would expect, when you consider that the documentary was produced by his friends and peers.