X0101 EFFECT 33 LIVE 2011-09-27 16:00:00

S-4

0001021113 GUITAR CENTER, INC. 333-175270 0001427553 GUITAR CENTER HOLDINGS, INC. 333-175270-07 0001521699 GTRC SERVICES, INC. 333-175270-06 0001521698 GUITAR CENTER GIFT CARD COMPANY, LLC 333-175270-05 0001521656 GUITAR CENTER STORES, INC. 333-175270-04 0001521701 HARMONY CENTRAL GROUP, LLC 333-175270-03 0001521702 MUSICIAN'S FRIEND, INC. 333-175270-02 0001521703 MUSIC123, INC. 333-175270-01