Web MIDI API
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Interact with MIDI devices in web applications with the Web MIDI API. Learn to connect to instruments, controllers, and other MIDI hardware.
Permission Required
Web MIDI API requires explicit user permission to access MIDI devices. The browser will prompt users to allow or deny access when the API is first used. Some browsers may not support this API.
Accessing MIDI Devices
Discover what MIDI devices are connected to your computer. This example shows how to request permission to use MIDI devices and then list all available keyboards, controllers, and other MIDI hardware.
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Output
Click Run to see output...Listening for MIDI Events
Respond to notes, knobs, and sliders from MIDI controllers in real-time. This example shows how to capture and interpret incoming MIDI messages when someone plays a keyboard or adjusts controls on a MIDI device.
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Output
Click Run to see output...Sending MIDI Messages
Control external synthesizers, drum machines, or lighting equipment from your web app. This example demonstrates how to send MIDI notes and control messages to connected devices.
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Output
Click Run to see output...