This limited easy interoperability with other devices. Featuring a 5-track sequencer, 32 built-in arranger styles, and 32 user-programmable styles, they predated the General MIDI standard. Generalmusic's first arranger workstation models were their WS series, released in 1990. It was founded in 1987 and ceased business in 2009 before becoming bankrupt in 2011. The company produced three lines: a musical instrument series called GEM, a various studio equipment series called LEM and electric organs/synthesizers called ELKA. Generalmusic was an Italian musical instrument manufacturing company focusing on digital and acoustic pianos, synthesizers and music workstations.