diff --git a/static/abc/index.html b/static/abc/index.html
index cb5540b..ba454a6 100644
--- a/static/abc/index.html
+++ b/static/abc/index.html
@@ -1,13 +1,45 @@
-<html onclick="
-c=new AudioContext();
-r=.08;
-n=(f,t,u)=>{
-    o=c.createOscillator();
-    o.connect(c.destination);
-    o.frequency.value=f;
-    o.start(t*r);
-    o.stop(u*r-r);
+<textarea id="f">
+@i-e!ce!g+ce!dc-bgb+dgfe!de!
+@ice!g+ce!dcdc-bagfe!d
+@ie!ce!g+ce!dc-bgb+dgfe!d
+@i+e!ce!g+ce!dcdc-bagfe!d
+@i+e!c-ge!c++c-ge!a!--fa!+cfa!+ce!
+@i+d-b!fd-b!++b!fdg--e!gb!+dgb!+d
+@i+ge!dc-ge!dh.c
+</textarea><br>
+<button onclick="
+A=new AudioContext();
+// tempo
+r=.4
+// play note with pitch and duration
+p=(h,t,u)=>{
+  a=A.createOscillator();
+  a.connect(A.destination);
+  a.frequency.value=h;
+  a.start(t*r);
+  a.stop(u*r);
 };
-m=[147, 2, 147, 2, 294, 4, 220, 6, 208, 4, 196, 4, 175, 4, 147, 2, 175, 2, 196, 2];
-for(i=0,t=0;i<m.length;i+=2)n(m[i],t,t+=m[i+1]);
-">click anywhere
+// read text from input
+f=f.value||window.location.search;
+for(i=t=o=m=0,l=1;c=f[i++],d=f[i];){
+  // https://chriskallen.com/zzt/zztoop.php#sound
+  // look-ahead for accidentals
+  m=d=='#'?1:d=='!'?-1:0;
+  s=n=>()=>p(440*Math.pow(2,(n+m+o)/12),t,t+=l);
+  q=n=>()=>l=n;
+  x=()=>t+=l;
+  g=[
+    // c major scale
+    s(-9),s(-7),s(-5),s(-4),s(-2),s(0),s(2),
+    // octaves
+    ()=>o-=12,()=>o+=12,
+    // change duration
+    q(4),q(2),q(1),q(.5),q(.25),q(.125),q(l/3),q(l*1.5),
+    // reset
+    ()=>(o=0,l=.125),
+    // rest, sound effects not implemented
+    x,x,x,x,x,x,x,x,x,x,
+  ]['cdefgab-+whqist3.@x012456789'.indexOf(c.toLowerCase())];
+  g&&g();
+}
+">#play</button>
diff --git a/static/abc/min.html b/static/abc/min.html
new file mode 100644
index 0000000..de199c6
--- /dev/null
+++ b/static/abc/min.html
@@ -0,0 +1 @@
+<textarea id="f"></textarea><p><button onclick="A=new AudioContext();r=.4;p=(h,t,u)=>{a=A.createOscillator();a.connect(A.destination);a.frequency.value=h;a.start(t*r);a.stop(u*r);};for(i=t=o=m=0,l=1;c=f.value[i++],d=f.value[i];){m=d=='#'?1:d=='!'?-1:0;s=n=>()=>p(440*Math.pow(2,(n+m+o)/12),t,t+=l);q=n=>()=>l=n;x=()=>t+=l;g=[s(-9),s(-7),s(-5),s(-4),s(-2),s(0),s(2),()=>o-=12,()=>o+=12,q(4),q(2),q(1),q(.5),q(.25),q(.125),q(l/3),q(l*1.5),()=>(o=0,l=.125),x,x,x,x,x,x,x,x,x,x,]['cdefgab-+whqist3.@x012456789'.indexOf(c.toLowerCase())];g&&g();}">#play</button>
\ No newline at end of file
diff --git a/static/abc/min.txt b/static/abc/min.txt
new file mode 100644
index 0000000..9e55a80
--- /dev/null
+++ b/static/abc/min.txt
@@ -0,0 +1 @@
+data:text/html;base64,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
\ No newline at end of file
