In 1990, Horn produced English musician Seal's eponymous debut album. This began a multi-album collaboration which Horn reasoned down to his liking of Seal's voice and a "musical empathy" with how he works and the songs he writes. "Seal" reached No. 1 in the UK and lead single "Crazy" went to No. 2. The album marked a turning point in Horn's production method, switching typical studio hardware for computers, and recorded tracks on "Seal" using MIDI and Studio Vision software. Horn was pleased with the results and sold his PC equipment for an Apple Macintosh. At this stage of his career, Horn had lost his enthusiasm for producing 12-inch mixes of songs and brought in other remixers to make them, while concentrating on albums.