This must have been a great party. In January, a remarkable group of mostly Colombian musicians gathered in the historic studios of Discos Fuentes, with a plan to "re-interpret the tropical musical heritage of Colombia". The idea was conceived by bandleader Mario Galeano and English producer Will Holland, who assembled a 42-strong cast including the celebrated percussionist Fruko, veteran pianist Juancho Vargas – now in his 80s and still sounding classy as ever – and young hip-hop stars. And it worked. Age was clearly no barrier, and neither was the cheerful collision of styles – there's everything here from insistent, loping cumbia dance music to salsa, the Afro-Caribbean rhythms of gaita, ska, hip-hop, dub and funk. The best of the 26 tracks include the mix of accordion and hip-hop in Suena, the clash of a young beatboxer and an 80-year-old gaita player on Rap Maya, and a chanting, Latin treatment of a Black Sabbath song. A 10-piece Ondatrópica band will play at the River of Music event in London later this month.