Answer: SIDEB

AnswerCrossword Clue
SIDEBSingle choice
SIDEBLess popular track, often
SIDEBRod Stewart's "Maggie May," for one
SIDEBElvis's "Viva Las Vegas," recordwise
SIDEBLesser-played part of a 45
SIDEBBacktrack?
SIDEBElvis's "Can't Help Falling In Love," e.g.
SIDEB45 half
SIDEBSong that people flip for?
SIDEBOne might flip a tape to it
SIDEBPlatter part
SIDEBPart of a cassette tape
SIDEBCassette tape notation
SIDEBRecord marking
SIDEBTape marking
SIDEBPhrase on a platter label
SIDEBIt might be played out of curiosity
SIDEBSecondary cut
SIDEBSingle half
SIDEBObsolescent designation in the music business
SIDEBBottom of an LP
SIDEBSite of a hit song's instrumental version, maybe
SIDEBHit's back
SIDEBFlip for a hit?
SIDEBHalf an LP
SIDEBBack of a record
SIDEBHalf of a tape
SIDEBLesser half of a 45
SIDEBCassette feature
SIDEBRecord half
SIDEBPart of an LP
SIDEBHalf of a record
SIDEBOne half of a 45
SIDEBLess popular half of a 45
SIDEBHit single's 'tagalong'
SIDEBHalf of a cassette
SIDEBHit bottom?
SIDEBSecond half of a cassette
SIDEBBottom of a platter
SIDEBLess-often-played half of a 45 rpm platter