qrplay v1 now with multi-channel

static/qrplay/index.html

@@ -18,16 +18,21 @@
 <meta name="viewport" content="width=device-width initial-scale=1.0">
 <textarea id=f></textarea><br>
 <button onclick='
+/*qrplay v1, nycki & SArpnt, 2025*/
 v=f.value;
-A=new AudioContext;
+T=[];Z=0; // channels
+f.A=A=f.A||new AudioContext;
+B=new GainNode(A,{gain:0.4});
+B.connect(A.destination);
 for(
-	i=t=o=k=0,l=1;
+	i=o=k=t=0,l=1;
 	c=v[i++],d=v[i],c;
 
 	z<0?0: // no match
-	z==29?k=0: // end of comment
-	z==28?k=1: // start of comment
+	z>29?k=1: // start of comment. P, O, V, U, K, R, not implemented.
+	z>28?k=0: // end of comment
 	k?0: // comment
+	z>27?(T[Z]=t,Z=+v.slice(i,i+=2),t=T[Z]||0): // change channel
 	z>17?t+=l: // rest
 	z<4? // @-+
 		z?o+=g: // change octave
@@ -38,14 +43,14 @@ for(
 			type:`square`,
 			detune:100*(g+o+(d==`#`)-(d==`!`)) // # sharp or ! flat
 		}),
-		a.connect(A.destination),
+		a.connect(B),
 		a.start(t*.4),
 		t+=l,
 		a.stop(t*.4)
 	)
 )
-	g=[,-12,12,4,-9,2,-7,1,-5,.5,-4,.25,-2,1/8,0,l/3,2,l*1.5][z=`@-+wchdqeifsgta3b.x012456789\x27\n`.indexOf(c.toLowerCase())]
-'>#play</button>
+	g=[,-12,12,4,-9,2,-7,1,-5,.5,-4,.25,-2,1/8,0,l/3,2,l*1.5][z=`@-+wchdqeifsgta3b.x012456789z\npovukr\x27`.indexOf(c.toLowerCase())]
+'>#play</button><button onclick='f.A.close();f.A=0'>#stop</button>
 <!-- stop snipping here -->
 
 <script>f.value=f.value||window.location.search.slice(1)||`'Solfeggettio in C Minor by JS Bach
@@ -63,14 +68,14 @@ for(
     <tr><td>qrplay</td><td>Solfeggetio in C Minor</td></tr>
     <tr>
         <td>
-            <img src="qrplay.png">
+            <img src="qrplay-v1.png">
         </td>
         <td>
             <img src="qrplay-solfeggettio.png">
         </td>
     </tr>
     <tr>
-        <td><textarea>data:text/html;base64,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</textarea></td>
+        <td><textarea>data:text/html,&lt;meta%20name="viewport"%20content="width=device-width%20initial-scale=1.0"&gt;&lt;textarea%20id=f&gt;&lt;/textarea&gt;&lt;br&gt;&lt;button%20onclick='/*qrplay%20v1,%20nycki%20&%20SArpnt,%202025*/v=f.value;T=[];Z=0;%20f.A=A=f.A||new%20AudioContext;B=new%20GainNode(A,{gain:0.4});B.connect(A.destination);for(i=o=k=t=0,l=1;c=v[i++],d=v[i],c;z&lt;0?0:%20z&gt;29?k=1:%20z&gt;28?k=0:%20k?0:%20z&gt;27?(T[Z]=t,Z=+v.slice(i,i+=2),t=T[Z]||0):%20z&gt;17?t+=l:%20z&lt;4?%20z?o+=g:%20(o=0,l=1/8):%20z&1?l=g:%20(%20a=new%20OscillatorNode(A,{type:`square`,detune:100*(g+o+(d==`%23`)-(d==`!`))%20}),a.connect(B),a.start(t*.4),t+=l,a.stop(t*.4)))g=[,-12,12,4,-9,2,-7,1,-5,.5,-4,.25,-2,1/8,0,l/3,2,l*1.5][z=`@-+wchdqeifsgta3b.x012456789z\npovukr\x27`.indexOf(c.toLowerCase())]'&gt;%23play&lt;/button&gt;&lt;button%20onclick='f.A.close();f.A=0'&gt;%23stop&lt;/button&gt;</textarea></td>
         <td><textarea>'Solfeggettio in C Minor by JS Bach
 @i-e!ce!g+ce!dc-bgb+dgfe!de!
 @ice!g+ce!dcdc-bagfe!d

static/qrplay/min.html

@@ -1 +1 @@
-<meta name="viewport" content="width=device-width initial-scale=1.0"><textarea id=f></textarea><br><button onclick='v=f.value;A=new AudioContext;for(i=t=o=k=0,l=1;c=v[i++],d=v[i],c;z<0?0:z==29?k=0:z==28?k=1:k?0:z>17?t+=l:z<4?z?o+=g:(o=0,l=1/8):z&1?l=g:(a=new OscillatorNode(A,{type:`square`,detune:100*(g+o+(d==`#`)-(d==`!`))}),a.connect(A.destination),a.start(t*.4),t+=l,a.stop(t*.4)))g=[,-12,12,4,-9,2,-7,1,-5,.5,-4,.25,-2,1/8,0,l/3,2,l*1.5][z=`@-+wchdqeifsgta3b.x012456789\x27\n`.indexOf(c.toLowerCase())]'>#play</button>
+<meta name="viewport" content="width=device-width initial-scale=1.0"><textarea id=f></textarea><br><button onclick='/*qrplay v1, nycki & SArpnt, 2025*/v=f.value;T=[];Z=0; f.A=A=f.A||new AudioContext;B=new GainNode(A,{gain:0.4});B.connect(A.destination);for(i=o=k=t=0,l=1;c=v[i++],d=v[i],c;z<0?0: z>29?k=1: z>28?k=0: k?0: z>27?(T[Z]=t,Z=+v.slice(i,i+=2),t=T[Z]||0): z>17?t+=l: z<4? z?o+=g: (o=0,l=1/8): z&1?l=g: ( a=new OscillatorNode(A,{type:`square`,detune:100*(g+o+(d==`#`)-(d==`!`)) }),a.connect(B),a.start(t*.4),t+=l,a.stop(t*.4)))g=[,-12,12,4,-9,2,-7,1,-5,.5,-4,.25,-2,1/8,0,l/3,2,l*1.5][z=`@-+wchdqeifsgta3b.x012456789z\npovukr\x27`.indexOf(c.toLowerCase())]'>#play</button><button onclick='f.A.close();f.A=0'>#stop</button>

static/qrplay/min.txt

@@ -1 +1,5 @@
-data:text/html;base64,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
+note to self:
+space -> %20
+# -> %23
+
+data:text/html,<meta%20name="viewport"%20content="width=device-width%20initial-scale=1.0"><textarea%20id=f></textarea><br><button%20onclick='/*qrplay%20v1,%20nycki%20&%20SArpnt,%202025*/v=f.value;T=[];Z=0;%20f.A=A=f.A||new%20AudioContext;B=new%20GainNode(A,{gain:0.4});B.connect(A.destination);for(i=o=k=t=0,l=1;c=v[i++],d=v[i],c;z<0?0:%20z>29?k=1:%20z>28?k=0:%20k?0:%20z>27?(T[Z]=t,Z=+v.slice(i,i+=2),t=T[Z]||0):%20z>17?t+=l:%20z<4?%20z?o+=g:%20(o=0,l=1/8):%20z&1?l=g:%20(%20a=new%20OscillatorNode(A,{type:`square`,detune:100*(g+o+(d==`%23`)-(d==`!`))%20}),a.connect(B),a.start(t*.4),t+=l,a.stop(t*.4)))g=[,-12,12,4,-9,2,-7,1,-5,.5,-4,.25,-2,1/8,0,l/3,2,l*1.5][z=`@-+wchdqeifsgta3b.x012456789z\npovukr\x27`.indexOf(c.toLowerCase())]'>%23play</button><button%20onclick='f.A.close();f.A=0'>%23stop</button>