The Beach Boys' acclaimed 1966 LP "Pet Sounds" relied on multitrack recorders for its innovative production. Brian Wilson pretaped all the instrumental backing tracks with a large ensemble, recording the performances live, direct to a four-track recorder. These four-track backing tapes were then 'dubbed down' to one track of an eight-track tape. Six of the remaining seven tracks were then used to individually record the vocals of each member of The Beach Boys, and the eighth track was reserved for any final 'sweetening' overdubs of instruments or voices.