Walter Murphy - A Fifth Of Beethoven

A Fifth of Beethoven is a disco instrumental recorded by Walter Murphy and the Big Apple Band, adapted from the first movement of Ludwig van Beethoven's Symphony No. 5.
The song's title is a pun, referencing both a liquid measure (approximately one-fifth of a gallon, a common bottle size for hard liquor) and Beethoven's Fifth Symphony.
The record was produced by Thomas J. Valentino and released as a single by Private Stock Records in 1976.
It debuted on the Billboard Hot 100 at number 80 on June 12, 1976, and reached number 1 on October 9, 1976, where it stayed for one week.
The song was credited to "Walter Murphy & The Big Apple Band" to appeal to a group audience, though the band was essentially Murphy himself.