This box collects and restores two legendary Música Urbana mid-70s releases, both met at the time with extravagant critical acclaim but with few sales outside of Spain, and presents for the first time a set of previously unknown studio recordings by the otherwise undocumented Trio Altisent – which features members of both other projects - alongside a substantial and comprehensive book of background materials, newly conducted interviews, rare unpublished photographs and a general overview of the …