Since he began hosting his weekly Acid Jams in the northerly mountain town of Nederland in 1996, promoter "Michigan Mike" Torpie has seen some mighty fine players wander up on stage and play improvisational music for eager, dancing crowds: Stanley Jordan did it once, and Tony Furtado's done it often, as have members of the String Cheese Incident and Leftover Salmon. In February Torpie celebrated the 200th installment of the series, a victory he marked by briefly extending its reach into Boulder's Mellow Mushroom on Tuesday nights. Jazzheads who can't get enough jam in their diet can access archives of past events and stream live broadcasts through Torpie's Web site, www.michiganmike.com. With Torpie around, there's plenty of fire on the mountain.