Sweet Harmony: Mapping Waltham Forest’s dance radio stations, record shops & venues, 1989-1994 is a 24-page booklet and wrap around B2 map, which maps out former pirate radio stations, venues and businesses who were key in the development of the rave music scene in the late 80s and early 90s in the London Borough of Waltham Forest. The booklet and map include oral history interviews, links to playlists, archival flyers and photographs from the time.

Oral history extracts include Roy Balfourth, Linden C, Andy Clockwork, Dlux, DJ Rap, Vicki Edwards, Adrian Hall, Kier Hawkins, Stephen Hebditch, Ronnie Herel, Marlon Guildford, Gordon Mac, MC Navigator, Roger the Doctor, Slipmatt, Mike Stone, Tim Strudwick and Warlock.