The 24 Preludes of Adam Gorb (born in Cardiff in 1958 and a feature of musical life in Manchester for over two decades) follow the examples of Chopin and Shostakovich in describing a cycle of fifths - though his descend, whereas Chopin's and Shostakovich's go up. Like those earlier exemplars, as also the preludes of Debussy, Rachmaninov and others, Gorb's are miniature studies of personality and mood - charming, brittle, perky, languorous, bat-flight fast, borderline violent or tender, as required. His Velocity does what it says on the can: it's a wild, even manic, chase, over rhythmically dislocating ground