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 only the vocals live to simplify the process of mixing the performance, because it means that the sound engineers do not have to set up microphones for different backing bands. Backing tracks can also be bought online through a backing track supplier and used for home practice or use in live shows. Prior to the advent of computers, backing tracks were generally employed through the use of audio tape synced with the live performance. In the 1980s, Timbuk 3 was an early band which openly used backing tracks in live performances. The band openly displayed their "boom-box" as the third