It’s the 21st California Worldfest this weekend, and, hmm, the 21st time KVMR 89.5 FM will broadcast it, beginning to end. Lynn Heintz — with eight years of KVMR live remote broadcasting experience behind him — is taking the reins as the broadcast producer for the Nevada City radio station. “Turn off your radio and come down to see Worldfest live.”Yup, Heintz is a major believer in supporting live music and doesn’t mind getting a little brash sometimes. “So we’ve added some people familiar with world music, thinking they’ll add to the sound.”It’s been awhile since Heintz joked his do-anything volunteer reputation came from KVMR people saying, “Call Lynn. Over 700 tickets got sold at the gate to KVMR’s “Summer Of Love” music festival last Saturday in Nevada City’s Pioneer Park.