feat: emit per-note matrix trigger for glow

sound_algo/data_only/matrix.scd

@@ -44,7 +44,7 @@
 // NOTE: voices that compute \freq via Pfunc (ignoring \octave) will not respond
 // to the octave variation — acceptable for v1; tune the palette at the live gate.
 // Single function so all variation logic lives in one place.
-~matVariation = { |name, color|
+~matVariation = { |name, color, vi = 0|
     (color == 0).if({ nil }, {
         var base = ~matBaseFor.(name);
         base.notNil.if({
@@ -60,6 +60,10 @@
             spec.notNil.if({
                 Pchain(
                     Pbind(
+                        \matGlow, Pfunc { |e|
+                            ~matEmitTrig.(vi, (e[\amp] ? spec[\amp]).clip(0, 1));
+                            0
+                        },
                         \stretch, spec[\stretch],
                         \octave,  spec[\octave],
                         \amp,     spec[\amp]
@@ -85,7 +89,7 @@
                 },
                 {
                     (color != ~matLastColor[vi]).if({
-                        var pat = ~matVariation.(name, color);
+                        var pat = ~matVariation.(name, color, vi);
                         pat.notNil.if({
                             ~matLastColor[vi] = color;
                             Pdef(key, pat);
@@ -106,6 +110,12 @@
     ~toscSend !? { ~toscSend.("/matrix/playhead", ~lp[\matBar]) }
 };
 
+// -- ~matEmitTrig : push a per-note amplitude pulse to web/TouchOSC clients --
+// vi = voice index, amp clipped to 0..1. Same ~toscSend path as /matrix/playhead.
+~matEmitTrig = { |vi, amp|
+    ~toscSend !? { ~toscSend.("/matrix/trig", vi, amp.clip(0, 1)) }
+};
+
 // -- ~matStop : halt the playhead Routine and silence all matrix voices --
 ~matStop = {
     ~matRoutine !? { ~matRoutine.stop };

sound_algo/data_only/test/test_matrix.scd

@@ -62,6 +62,21 @@ try {
     ("EXCEPTION in ~matStop: " ++ e.class.name).postln
 };
 
+// ~matEmitTrig must be defined and emit /matrix/trig with amp clipped to 0..1
+pass = pass and: { ~matEmitTrig.notNil };
+~trigLog = nil;
+~toscSend = { |path ...args| ~trigLog = ([path] ++ args) };  // capturing stub
+try {
+    ~matEmitTrig.(3, 1.5)
+} { |e|
+    pass = false;
+    ("EXCEPTION in ~matEmitTrig: " ++ e.class.name).postln
+};
+pass = pass and: { ~trigLog.notNil };
+pass = pass and: { ~trigLog[0] == "/matrix/trig" };
+pass = pass and: { ~trigLog[1] == 3 };
+pass = pass and: { ~trigLog[2] == 1.0 };   // 1.5 clipped to 1.0
+
 pass.if(
     { "TEST PASS".postln },
     { "TEST FAIL".postln }