Jack Tramiel left Commodore in 1984, apparently after a falling out with its chairman. His legacy was already assured, however, and he continued to influence the industry until the mid-1990s via the Atari Corporation, which he bought months after his departure from Commodore. Its first PC under his leadership, the Atari ST, released in 1985, became a favourite with musicians thanks to its built-in for the MIDI standard, for example.