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MIDIAccess

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The MIDIAccess interface of the Web MIDI API provides methods for listing MIDI input and output devices, and obtaining access to those devices.

Properties

MIDIAccess.inputs Read only: Returns an instance of MIDIInputMap which provides access to any available MIDI input ports.
MIDIAccess.outputs Read only: Returns an instance of MIDIOutputMap which provides access to any available MIDI output ports.
MIDIAccess.sysexEnabled Read only: A boolean attribute indicating whether system exclusive support is enabled on the current MIDIAccess instance.

Event Handlers

MIDIAccess.onstatechange: Called whenever a new MIDI port is added or an existing port changes state.

Examples

Specifications

Specification	Status	Comment
Web MIDI API	Working Draft	Initial definition.

Browser compatibility

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	43.0	No support	No support	33.0	No support

Feature	Android	Android Webview	Firefox Mobile (Gecko)	Firefox OS	IE Mobile	Opera Mobile	Safari Mobile	Chrome for Android
Basic support	No support	43.0	?	?	No support	?	No support	43.0

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https://developer.mozilla.org/en-US/docs/Web/API/MIDIAccess