Approved content

The content below is provided by partner.

midi 2.1.1 (microsoft/pxt-midi) Fork me

A MIDI output controller package

MIDI Build Status

Emulates a MIDI output controller.

Usage

Setup

You will need to connect a MIDI via serial, radio or bluetooth get it to “talk” to the MIDI output device.

midi.useRawSerial()

Playing tones

Place a ||midi play tone|| block to play a single note (on channel 1). The frequency is mapped to the nearest note.

midi.playTone(Note.A, music.beat(BeatFraction.Whole))

Tone on / off

Place a ||midi tone on|| block to start a tone (on channel 1). Place a ||midi tone off|| to turn it off.

midi.toneOn(Note.A)
midi.toneOn(Note.B)
basic.pause(music.beat())
midi.toneOff(Note.A)
midi.toneOff(Note.B)

Drums

Place a ||midi play drum|| block to play a drum sound. This blocks plays sounds on channel 10 which is reserved for drums.

midi.playDrum(DrumSound.HandClap)

Pitch bending

Place a ||midi pitch bend|| block to applying a sound bending effect to channel 1.

midi.pitchBend(8192 + input.acceleration(Dimension.X) * 8)

Channels

You can access and manipulate individual channels using the ||midi channel|| block. Channels are indexed from 1 to 16 and mapped internally to 0..15.

let piano = midi.channel(1);

play a note

let piano = midi.channel(1);
piano.note(30, music.beat(BeatFraction.Whole));

play a note on / off

let piano = midi.channel(1);
piano.noteOn(30);
basic.pause(100)
piano.noteOff(30)

change instrument

let trumpet = midi.channel(2);
trumpet.setInstrument(MidiInstrument.Trumpet);

change pitch bend

The pitch bend expects values between 0..16383 where 8192 means no bend.

let piano = midi.channel(1);
piano.pitchBend(8192 + input.acceleration(Dimension.X) * 8)

License

MIT

Supported targets

(The metadata above is needed for package search.)

Code of Conduct

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.

midi=github:microsoft/pxt-midi#v2.1.1