From ff5bdd964c4917b079b5a730d4f1d0a5598e5fea Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Mon, 3 Aug 2026 11:55:17 +0000
Subject: [PATCH] Fix missing choruses/refrains in Singalong and World songs;
 dedupe Nursery Rhymes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Same class of bug as the Folk/Christmas fixes: the pub()/world() helpers
loop a single melody, which drops any distinct chorus or refrain.

- Molly Malone: added the "Alive, alive-o!" hook, previously missing
- Whiskey in the Jar: added the "Musha ring dum-a-doo-dum-a-da / Whack
  for the daddy-o" chorus, previously missing
- Cielito Lindo: added the iconic "Ay, ay, ay, ay, canta y no llores"
  refrain (arguably the most recognizable part of the song), previously
  missing

Also removed a dead duplicate block in NURSERY_PIECES where twinkle,
mary, birthday, chopsticks, lavender, and shortnin were each declared
twice with byte-identical content — harmless (the second assignment
always won) but pure waste.

Verified other Singalong/Spirituals/World songs and left them as-is:
their chorus/refrain reuses the same melody as the verse in the real
song, so the single-loop structure is already correct. Ragtime pieces
are honestly labeled "A section" only in their comments — a known,
intentional simplification rather than a bug, since accurately
transcribing the additional strains of Joplin's multi-strain piano rags
is a materially different and much higher-risk undertaking than a
folk-song verse/chorus fix.
---
 index.html | 138 +++++++++++++++++++++++++++++++++++------------------
 1 file changed, 92 insertions(+), 46 deletions(-)

diff --git a/index.html b/index.html
index 06424c5..e02794a 100644
--- a/index.html
+++ b/index.html
@@ -3935,16 +3935,67 @@ const SINGALONG_PIECES=(function(){
     bg.push({t:t,f:A3/2,d:2.0,i:'timpani',v:0.6});mel.push({t:t,l:4});
     return {n:"Drunken Sailor",composer:"Sea Shanty (Trad.)",bpm:140,duration:Math.ceil(t+3),isClassical:true,isSingalong:true,timeSig:[4,4],bg:bg,melody:mel};
   })();
-  var molly=pub("Molly Malone","Irish (1880s)",100,
-    [C4,E4,E4,E4,F4,G4,G4,G4,A4,G4,F4,E4,D4,E4,F4,G4,A4,C5,C5,B4,A4,G4,F4,E4,D4,C4,E4,G4,C5,C5,B4,A4,G4,F4,E4,D4,C4],
-    [0,2,2,2,1,3,3,3,0,3,1,2,1,2,1,3,0,0,0,3,0,3,1,2,1,0,2,3,0,0,3,0,3,1,2,1,0],
-    [2,2,2,2,2,4,2,2,2,2,2,2,2,2,2,4,2,4,2,2,2,2,2,2,2,4,2,2,4,2,2,2,2,2,2,2,6],
-    4,C4);
-  var whiskey=pub("Whiskey in the Jar","Irish (Trad.)",125,
-    [G4,G4,A4,B4,B4,A4,G4,E4,D4,E4,G4,G4,A4,B4,D5,B4,A4,G4,E4,D4,E4,G4,A4,B4,A4,G4,E4,D4,E4,G4],
-    [3,3,0,3,3,0,3,2,1,2,3,3,0,3,1,3,0,3,2,1,2,3,0,3,0,3,2,1,2,3],
-    [2,2,2,4,2,2,2,2,2,2,2,2,2,4,2,2,2,2,2,2,2,2,2,4,2,2,2,2,2,6],
-    5,G4);
+  // Verse + the DISTINCT repeated "Alive, alive-o!" hook, which was previously missing.
+  var molly=(function(){
+    var bg=[],mel=[],t=0,u=30/100; // u = one eighth-note unit
+    function seq(theme,lanes,durs,inst,v,rep){
+      theme.forEach(function(f,i){
+        var d=durs[i]*u;
+        bg.push({t:t,f:f,d:d*0.85,i:inst,v:v});
+        if(rep>1)bg.push({t:t,f:f/2,d:d*0.85,i:'bass',v:v*0.35});
+        mel.push({t:t,l:lanes[i],d:d,f:f});
+        t+=d;
+      });
+    }
+    var verseTheme=[C4,E4,E4,E4,F4,G4,G4,G4,A4,G4,F4,E4,D4,E4,F4,G4,A4,C5,C5,B4,A4,G4,F4,E4,D4,C4,E4,G4,C5,C5,B4,A4,G4,F4,E4,D4,C4];
+    var verseLanes=[0,2,2,2,1,3,3,3,0,3,1,2,1,2,1,3,0,0,0,3,0,3,1,2,1,0,2,3,0,0,3,0,3,1,2,1,0];
+    var verseDurs=[2,2,2,2,2,4,2,2,2,2,2,2,2,2,2,4,2,4,2,2,2,2,2,2,2,4,2,2,4,2,2,2,2,2,2,2,6];
+    // "Alive, alive-o! Alive, alive-o! Crying cockles and mussels, alive, alive-o!"
+    var hookTheme=[C5,C5,B4,A4,G4, C5,C5,B4,A4,G4, F4,E4,D4,E4,F4,G4,A4, G4,F4,E4,D4,C4];
+    var hookLanes=[0,0,3,0,3, 0,0,3,0,3, 1,2,1,2,1,3,0, 3,1,2,1,0];
+    var hookDurs=[1,1,1,1,4, 1,1,1,1,4, 2,2,2,2,2,2,4, 2,2,2,2,8];
+    for(var rep=0;rep<4;rep++){
+      var v=0.2+rep*0.08;
+      var inst=rep===0?'woodwind':rep===1?'strings':'brass';
+      seq(verseTheme,verseLanes,verseDurs,inst,v,rep);
+      seq(hookTheme,hookLanes,hookDurs,inst,v*1.1,rep);
+      t+=0.4;
+    }
+    [C4,C4*5/4,C4*3/2,C4*2].forEach(function(f){bg.push({t:t,f:f,d:2.0,i:'strings',v:0.5});bg.push({t:t,f:f,d:2.0,i:'brass',v:0.4});});
+    bg.push({t:t,f:C4/2,d:1.5,i:'timpani',v:0.55});mel.push({t:t,l:4});
+    return {n:"Molly Malone",composer:"Irish (1880s)",bpm:100,duration:Math.ceil(t+2.5),isClassical:true,isSingalong:true,timeSig:[4,4],bg:bg,melody:mel};
+  })();
+  // Verse + the DISTINCT "Musha ring dum-a-doo-dum-a-da / Whack for the daddy-o"
+  // chorus, which was previously missing entirely.
+  var whiskey=(function(){
+    var bg=[],mel=[],t=0,u=30/125; // u = one eighth-note unit
+    function seq(theme,lanes,durs,inst,v,rep){
+      theme.forEach(function(f,i){
+        var d=durs[i]*u;
+        bg.push({t:t,f:f,d:d*0.85,i:inst,v:v});
+        if(rep>1)bg.push({t:t,f:f/2,d:d*0.85,i:'bass',v:v*0.35});
+        mel.push({t:t,l:lanes[i],d:d,f:f});
+        t+=d;
+      });
+    }
+    var verseTheme=[G4,G4,A4,B4,B4,A4,G4,E4,D4,E4,G4,G4,A4,B4,D5,B4,A4,G4,E4,D4,E4,G4,A4,B4,A4,G4,E4,D4,E4,G4];
+    var verseLanes=[3,3,0,3,3,0,3,2,1,2,3,3,0,3,1,3,0,3,2,1,2,3,0,3,0,3,2,1,2,3];
+    var verseDurs=[2,2,2,4,2,2,2,2,2,2,2,2,2,4,2,2,2,2,2,2,2,2,2,4,2,2,2,2,2,6];
+    // "Musha ring dum-a-doo-dum-a-da, / Whack for the daddy-o, / Whack for the daddy-o, / There's whiskey in the jar."
+    var chorusTheme=[G4,G4,A4,B4,B4,A4,G4,E4,D4, D4,E4,G4,A4,B4, D4,E4,G4,A4,B4, D5,B4,A4,G4,E4,D4];
+    var chorusLanes=[3,3,0,3,3,0,3,2,1, 1,2,3,0,3, 1,2,3,0,3, 1,3,0,3,2,1];
+    var chorusDurs=[1,1,1,1,1,1,1,1,2, 2,1,1,1,4, 2,1,1,1,4, 1,1,1,1,1,8];
+    for(var rep=0;rep<5;rep++){
+      var v=0.22+rep*0.06;
+      var inst=rep<2?'woodwind':rep<4?'strings':'brass';
+      seq(verseTheme,verseLanes,verseDurs,inst,v,rep);
+      seq(chorusTheme,chorusLanes,chorusDurs,inst,v*1.1,rep);
+      t+=0.4;
+    }
+    [G4,G4*5/4,G4*3/2,G4*2].forEach(function(f){bg.push({t:t,f:f,d:2.0,i:'strings',v:0.5});bg.push({t:t,f:f,d:2.0,i:'brass',v:0.4});});
+    bg.push({t:t,f:G4/2,d:1.5,i:'timpani',v:0.55});mel.push({t:t,l:4});
+    return {n:"Whiskey in the Jar",composer:"Irish (Trad.)",bpm:125,duration:Math.ceil(t+2.5),isClassical:true,isSingalong:true,timeSig:[4,4],bg:bg,melody:mel};
+  })();
   var parting=pub("The Parting Glass","Irish/Scots (Trad.)",80,
     [E4,G4,A4,B4,A4,G4,E4,D4,E4,G4,A4,B4,D5,B4,A4,G4,E4,G4,A4,B4,A4,G4,E4,D4,E4,G4,A4,B4,D5,B4,A4,G4],
     [2,3,0,3,0,3,2,1,2,3,0,3,1,3,0,3,2,3,0,3,0,3,2,1,2,3,0,3,1,3,0,3],
@@ -4216,11 +4267,37 @@ const WORLD_PIECES=(function(){
     [0,1,2,0,0,1,2,0,2,1,3,2,1,3,3,0,3,1,2,0,3,0,3,1,2,0,0,3,0,0,3,0],
     [2,2,2,2,2,2,2,2,2,2,4,2,2,4,2,2,2,2,2,4,2,2,2,2,2,4,2,2,4,2,2,8],
     4,C4);
-  var cielito=world("Cielito Lindo","Mexican (1882)",120,
-    [E4,E4,F4,G4,A4,G4,F4,E4,D4,E4,F4,E4,D4,C4,E4,G4,C5,C5,B4,A4,G4,F4,E4,D4,C4,E4,G4,C5],
-    [2,2,1,3,0,3,1,2,1,2,1,2,1,0,2,3,0,0,3,0,3,1,2,1,0,2,3,0],
-    [2,2,2,2,4,2,2,2,2,2,2,2,2,6,2,2,4,2,2,2,2,2,2,2,4,2,2,8],
-    4,C4);
+  // Verse + the iconic "Ay, ay, ay, ay, canta y no llores..." refrain, which was
+  // previously missing entirely (this refrain is the most recognizable part of the song).
+  var cielito=(function(){
+    var bg=[],mel=[],t=0,u=30/120; // u = one eighth-note unit
+    function seq(theme,lanes,durs,inst,v,rep){
+      theme.forEach(function(f,i){
+        var d=durs[i]*u;
+        bg.push({t:t,f:f,d:d*0.85,i:inst,v:v});
+        if(rep>1)bg.push({t:t,f:f/2,d:d*0.85,i:'bass',v:v*0.35});
+        mel.push({t:t,l:lanes[i],d:d,f:f});
+        t+=d;
+      });
+    }
+    var verseTheme=[E4,E4,F4,G4,A4,G4,F4,E4,D4,E4,F4,E4,D4,C4,E4,G4,C5,C5,B4,A4,G4,F4,E4,D4,C4,E4,G4,C5];
+    var verseLanes=[2,2,1,3,0,3,1,2,1,2,1,2,1,0,2,3,0,0,3,0,3,1,2,1,0,2,3,0];
+    var verseDurs=[2,2,2,2,4,2,2,2,2,2,2,2,2,6,2,2,4,2,2,2,2,2,2,2,4,2,2,8];
+    // "Ay, ay, ay, ay, / canta y no llores, / porque cantando se alegran, / cielito lindo, los corazones."
+    var refTheme=[G4,F4,E4,D4, C4,D4,E4,F4,G4,F4, F4,G4,F4,E4,D4,C4,D4,E4,F4, F4,G4,F4,E4,D4,C4,D4,C4];
+    var refLanes=[3,1,2,1, 0,1,2,1,3,1, 1,3,1,2,1,0,1,2,1, 1,3,1,2,1,0,1,0];
+    var refDurs=[2,2,2,4, 1,1,1,1,2,4, 1,1,1,1,1,1,1,1,4, 1,1,1,1,1,1,1,8];
+    for(var rep=0;rep<4;rep++){
+      var v=0.2+rep*0.08;
+      var inst=rep<1?'woodwind':rep<3?'strings':'brass';
+      seq(verseTheme,verseLanes,verseDurs,inst,v,rep);
+      seq(refTheme,refLanes,refDurs,inst,v*1.15,rep);
+      t+=0.4;
+    }
+    [C4,C4*5/4,C4*3/2,C4*2].forEach(function(f){bg.push({t:t,f:f,d:2.0,i:'brass',v:0.5});bg.push({t:t,f:f,d:2.0,i:'strings',v:0.4});});
+    bg.push({t:t,f:C4/2,d:1.5,i:'timpani',v:0.55});mel.push({t:t,l:4});
+    return {n:"Cielito Lindo",composer:"Mexican (1882)",bpm:120,duration:Math.ceil(t+2.5),isClassical:true,bg:bg,melody:mel};
+  })();
   var waltzing=world("Waltzing Matilda","Australian (1895)",110,
     [G4,G4,A4,B4,D5,B4,A4,G4,E4,G4,A4,B4,A4,G4,E4,D4,G4,G4,A4,B4,D5,B4,A4,G4,E4,D4,G4],
     [3,3,0,3,1,3,0,3,2,3,0,3,0,3,2,1,3,3,0,3,1,3,0,3,2,1,3],
@@ -4362,37 +4439,6 @@ const NURSERY_PIECES=(function(){
     [0,0,3,3,0,0,0,3,1,1,2,2,1,1,0,3,3,3,1,1,1,2,2,2,1,1,1,0],
     [2,2,2,2,2,2,2,4,2,2,2,2,2,2,4,2,2,2,2,2,2,2,2,2,2,2,2,6],
     3,C4);
-  // ── Classics (from Prime, simple versions) ──
-  var twinkle=rhyme("Twinkle Twinkle Little Star","Traditional (1760s)",75,
-    [C4,C4,G4,G4,A4,A4,G4,F4,F4,E4,E4,D4,D4,C4,G4,G4,F4,F4,E4,E4,D4,C4,C4,G4,G4,A4,A4,G4,F4,F4,E4,E4,D4,D4,C4],
-    [0,0,3,3,0,0,3,1,1,2,2,1,1,0,3,3,1,1,2,2,1,0,0,3,3,0,0,3,1,1,2,2,1,1,0],
-    [2,2,2,2,2,2,4,2,2,2,2,2,2,4,2,2,2,2,2,2,4,2,2,2,2,2,2,4,2,2,2,2,2,2,6],
-    3,C4);
-  var mary=rhyme("Mary Had a Little Lamb","S.J. Hale (1830)",80,
-    [E4,D4,C4,D4,E4,E4,E4,D4,D4,D4,E4,G4,G4,E4,D4,C4,D4,E4,E4,E4,D4,D4,E4,D4,C4],
-    [2,1,0,1,2,2,2,1,1,1,2,3,3,2,1,0,1,2,2,2,1,1,2,1,0],
-    [2,2,2,2,2,2,4,2,2,4,2,2,4,2,2,2,2,2,2,2,2,2,2,2,6],
-    3,C4);
-  var birthday=rhyme("Happy Birthday","P.S. Hill (1893)",75,
-    [C4,C4,D4,C4,F4,E4,C4,C4,D4,C4,G4,F4,C4,C4,C5,A4,F4,E4,D4,Bb4,Bb4,A4,F4,G4,F4],
-    [0,0,1,0,1,2,0,0,1,0,3,1,0,0,0,0,1,2,1,2,2,0,1,3,1],
-    [1,1,2,2,2,4,1,1,2,2,2,4,1,1,2,2,2,2,4,1,1,2,2,2,6],
-    3,C4);
-  var chopsticks=rhyme("Chopsticks","Euphemia Allen (1877)",95,
-    [F4,G4,F4,G4,F4,G4,E4,G4,E4,G4,E4,G4,D4,F4,D4,F4,C4,E4,C4,E4,F4,G4,F4,G4,E4,G4,E4,G4,D4,F4,D4,F4,C4,E4,C4,E4],
-    [1,3,1,3,1,3,2,3,2,3,2,3,1,1,1,1,0,2,0,2,1,3,1,3,2,3,2,3,1,1,1,1,0,2,0,2],
-    [2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,8],
-    3,C4);
-  var lavender=rhyme("Lavender's Blue","English Traditional (1670s)",80,
-    [E4,E4,D4,E4,F4,G4,G4,A4,G4,F4,F4,E4,D4,E4,E4,E4,D4,E4,F4,G4,G4,A4,G4,F4,E4],
-    [2,2,1,2,1,3,3,0,3,1,1,2,1,2,2,2,1,2,1,3,3,0,3,1,2],
-    [2,2,2,2,2,2,2,2,2,4,2,2,2,4,2,2,2,2,2,2,2,2,2,2,6],
-    3,C4);
-  var shortnin=rhyme("Shortnin' Bread","Traditional (1900s)",95,
-    [E5,E5,D5,C5,D5,C5,A4,G4,A4,G4,A4,G4,E5,E5,D5,C5,D5,C5,A4,G4,A4,G4,C5],
-    [2,2,1,0,1,0,0,3,0,3,0,3,2,2,1,0,1,0,0,3,0,3,0],
-    [2,2,2,2,2,2,4,2,2,2,2,4,2,2,2,2,2,2,4,2,2,2,8],
-    3,C4);
   return [baa,london,macdonald,row,mice,spider,weasel,hotcross,jack,humpty,twinkle,mary,birthday,chopsticks,lavender,shortnin];
 })();