Love the bass loops in this set from Organic Loops. I would have liked to have other guitar loops/ leads included to round out the package but what hey give you is very good quality. The drums are basic and standard styles and sounds. The bpms go from 75 to 100. The vibe of the basses are hard and dirty- lots of 'growl'. Very 70's ! Some loops are pure bass and some are a hybrid of guitars copying the bassline. This set is badass if you want classic hard rock sounds.