This page is read from MIDI Instrument Definitions, a Python library used in the author's other projects, in which every number is traced to a document its maker published. Its source is on GitHub.

Teenage engineering

Teenage engineering makes 5 of the instruments this release defines, each with a page of its own setting out its MIDI implementation, read from the maker's own documents. Each is loaded in Python by the name beside it.

• EP–133 K.O. II teenage_engineering/ep_133_ko_ii: 48 drums; 6 controls; sends and follows MIDI clock; firmware 2.5.
• OP-1 teenage_engineering/op_1: controls the player assigns; sends and follows MIDI clock; firmware #246.
• OP-1 field teenage_engineering/op_1_field: 12 parts; 52 controls; follows MIDI clock; firmware 1.7.0.
• OP-XY teenage_engineering/op_xy: 24 voices; 16 parts; 11 controls; sends and follows MIDI clock; firmware 1.1.15.
• OP-Z teenage_engineering/op_z: 16 parts; 53 controls; sends and follows MIDI clock; firmware 1.2.45.