A-side
THE TWO SIDES OF 78, 45, AND 33 1/3 RPM PHONOGRAPH RECORDS AND CASSETTE TAPES
B-sides; A-Side; B side; B Side; B-Side; A Side; A side; A-side; Double A-sided; Double A-side; Double A-Side; Double B-side; Double B-Side; Triple A-side; Triple A-Side; Triple B-side; Triple B-Side; Backed with; B-side; Double a side; Double a-side; Double A side; C/w; A-Side and B-Side; Side (recording); Side A (Band); B/w; A-side & B-side; A and B side; Double-A side; B Side (song); Side-B; Side B; Side A; A-sides; Dual single
¦ noun the side of a pop single regarded as the main one.