 One of Varèse's most devoted fans was the American guitarist and composer Frank Zappa, who, upon hearing a copy of "The Complete Works of Edgard Varèse, Vol.1" became obsessed with the composer's music.The first album Zappa heard was released on LP by EMS Recordings in 1950, and included "Intégrales", "Density 21.5", "Ionisation", and "Octandre".