# MidiEventChanged

`import { MidiEventChanged } from "destack:device/binding";`

MIDI changed event.

```ds title="MidiEventChanged"
export struct MidiEventChanged {
    kind: "changed";
    timestampNs: uint64;
    sequence: uint64;
    port: MidiPort;
}
```

[language/library/src/device/binding/midi.ds:244:253](https://github.com/destack-sh/destack/blob/main/language/library/src/device/binding/midi.ds#L244-L253)

## Members

### `kind: "changed"`

Event discriminator.

### `timestampNs: uint64`

Event timestamp in nanoseconds.

### `sequence: uint64`

Event sequence number.

### `port: MidiPort`

MIDI port.