fireworks burst with height corresponding to note pitch

perform.js

@@ -8,7 +8,7 @@ musis.perform.beat = function (play, stars, events, terrain, notes) {
   terrain.nextHarmony(notes);
   events.map(function (event) {
     play.chorus(event.time, event.note.freq(), event.duration);
-    stars.burst(event.note.solfege); // if event is later in the beat, this should be delayed
+    stars.burst(event.note); // if event is later in the beat, this should be delayed
   });
 };
 

stars.js

@@ -11,13 +11,13 @@ musis.stars = function () {
 musis.stars.prototype.render = function (draw) {
   this.bursts.map(function (burst) {
     var x = Math.random()*1.8-0.9;
-    var y = Math.random()*0.5;
+    var y = burst.absChromatic()/70 - 0.3;//Math.random()*0.5;
     var size = 0.1+Math.random()*0.3;
     for (var i = 0; i < numStarInBurst; i++) {
       var speed = size*Math.pow(Math.random(), 0.25);
       var theta = Math.random()*6.28;
       draw.addStar({
-        pitchClass: burst,
+        pitchClass: burst.solfege,
         x: x,
         y: y,
         vx: speed*Math.cos(theta),
@@ -30,8 +30,8 @@ musis.stars.prototype.render = function (draw) {
   draw.stars();
 };
 
-musis.stars.prototype.burst = function (solfege) {
-  this.bursts.push(solfege);
+musis.stars.prototype.burst = function (note) {
+  this.bursts.push(note);
 };
 
 })();