A bluegrass jam session takes place from 6 to 8 p.m., Thursday, April 15, at Pinnacle Peak Restaurant (6541 E. Tanque Verde Road). Free. Call 296-0911 for more information. Another bluegrass jam session takes place from 3 to 5 p.m., Sunday, April 18, at Vero Amore Pizza (12120 N. Dove Mountain Blvd.). Free. Call 579-5918 for more information.