20Hertz: Jawwaad Taylor: Thu., February 23, 6:30 p.m., Free. Contemporary Arts Museum Houston, 5216 Montrose, Houston, 713-284-8250. An Acoustic Evening with Randy Jackson of Zebra: Sat., February 18, 8 p.m., $15 to $100. Rockefellers, 3620 Washington, Houston, 713-869-3344. Al Staehely: Tue., January 24, 7:30 p.m., $20 to $22. McGonigel’s Mucky…