Original music ranging from classic rock anthems to contemplative instrumentals is the specialty of the Bill Berguson Band. In a recent YouTube video featuring an original song called “Long Time Comin’,” the group showcases the bluesy and psychedelic cocktail at the heart of its sound. Heavy in guitar and organ, the four-piece tears into the opening bars like a lost track off a Blind Faith album. The song then twists skyward when Berguson fires a spacey solo on his Stratocaster and keyboard player Mark Eskola launches a prog jam after it. Bassist Jeff Ross and drummer Travis Hilton help stick a clean landing on Geary Boulevard just outside the Fillmore West.