first (broken) attempt

packages/osc/osc.mjs

@@ -0,0 +1,16 @@
+import {OSC} from 'osc-js';
+//const OSC = require('osc-js');
+
+const comm = new OSC();
+comm.open();
+
+Pattern.prototype.osc = function () {
+    return this._withEvent((event) => {
+        const onTrigger = (time, event) => {
+            const keyvals = Object.entries(event.value).flat();
+            const message = new OSC.message("/dirt/play", ...keyvals);            
+            comm.send(message);
+        };
+        return event.setContext({ ...event.context, onTrigger });
+    });
+};