Blue Lines is generally considered the first trip hop album, although the term was not widely used before circa 1994. The album was a success in the United Kingdom, reaching #13 in the albums chart; sales were limited elsewhere. A fusion of electronic music, hip hop, dub, '70s soul and reggae, the album established Massive Attack as one of the most innovative British bands of the 1990s and the founder of trip hop's Bristol Sound. Music critic Simon Reynolds stated that the album also marked a change in electronic/dance music, "a shift toward a more interior, meditational sound. The songs on Blue Lines run at 'spliff' tempos — from a mellow, moonwalking 90 beats per minute ...down to a positively torpid 67 bpm. "The group also drew inspiration from concept albums in various genres by artists such as Pink Floyd, Public Image Ltd., Billy Cobham, Herbie Hancock and Isaac Hayes.