BS EN 63035:2017 MIDI|*|(Musical|*|Instrument|*|Digital|*|Interface)|*|specification|*|1.0|*|(Abridged|*|Edition,|*|2015)

Software (computers)
Hardware (computers)
Interfaces (data processing)
Application program interface
Musical instruments

Link: BS EN 63035:2017 MIDI|*|(Musical|*|Instrument|*|Digital|*|Interface)|*|specification|*|1.0|*|(Abridged|*|Edition,|*|2015)
Source: BSI Standards