Ace ventures back to the 60s for an amazing treasure trove of exciting rare and unissued tracks from the world's best-selling instrumental group. This is our fourth volume in the series, the other three proving to be among the label's top-sellers. It includes many previously unreleased tracks, alternative versions and impossible to find rarities. Most of the tracks are drawn from the classic 60s period and are of very high quality. Compiled by instrumental magazine Pipeline's Dave Burke and Alan Taylor.