In its inaugural edition in 1994, Sónar organized a fair for professionals with a dual dimension: a record and publishing fair (record labels, distributors, publications, publishers, promoters) and a technology fair (hardware and software brands, musical equipment companies). This format would undergo several incarnations over the years, gradually evolving away from the trade fair format and expanding to include art installations, film screenings, talks and conferences. Coinciding with the move of Sónar by Day to Fira Montjuic in 2013, this section of the festival program was re-imagined as Sónar+D.