Cover feature on Soundgarden's Kim Thayil. Plus Loudon Wainwright III's memory lane, Fred Frith's improvised universe, a glimpse at the early days of bluegrass festivals, and the story behind Sabicas' 1951 Barbero guitar. Luthiers this month include Steve Smith and his surprisingly affordable RedLine instruments, Jim Merrill and a box of wood, Scott Walker and his elegantly carved electrics, and cowboy Michael Stevens' pursuit of guitar perfection. 128 pp.