"Jeff St John, stalwart of the Australian '70s psych scene, lent his name to two previous bands (Jeff St John and Id and Jeff St John and Yama) before releasing Joint Effort as Jeff St John and Copperwine. Joint Effort, originally released on the Australian Spin label (SEL 933742), and probably the pinnacle of St John's recording career, is very much a psych prog crossover album, although some soul influences do crop up, particularly on the surging organ-based cover of The Temptations' 'Cloud Nine' as well as highly competent covers of Sly Stone's 'Sing A Simple Song' and Blind Faith's 'Can't Find My Way Home'. The rest of the album is made up of some excellent self-penned material, the outstanding tracks being the long instrumental, 'Any Orange Night' and the psych-tinged 'Fanciful Nights Of Mind'."