The Blue Things October 1965. A session drummer was used for the single sessions (in Nashville), as Larzalere had left and Day still had yet to join. Ray Walker, the bass singer from Elvis Presley's backing group The Jordanaires was used by producer Felton Jarvis to augment the group's vocal sound on "I Must Be Doing Something Wrong." and was the only non-Bluething vocal ever recorded. Once again, the single charted locally, but failed to chart outside of the Midwest. The following single, while repeating the chart action of the band's previous RCA single, at least gained the band some notoriety. The A-side,
Backing track using the original recording of a song, because the rights to use the original performance of the backing parts of a song by a well-known band would be very costly to purchase. In electronic music, some parts which have been programmed are too fast or complex to be played by a live musician. Backing tracks are also used when some or all members of a group are miming the playing of their instruments, lip-synching or using guide tracks. Also, certain situations may dictate that a backing track must be used; some television programs require that reality TV singing contestants perform