Preview calendar: Clubs and concerts for April 5-11



North County Times
Channel 933 Summer Kickoff ---- With Maroon 5, Gym Class Heroes; 6 pm May 11; Cricket Wireless Amphitheatre, 2050 Entertainment Circle, Chula Vista; $31-$91; livenation.com or 800-745-3000. Snow Patrol ---- 8 pm May 11; Pechanga Theater, ...





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