Merge pull request #47 from outis1one/claude/webfetch-capability-nb746n

Claude/webfetch capability nb746n

index.html

@@ -3400,10 +3400,14 @@ const FOLK_PIECES=(function(){
       var inst=rep===0?'woodwind':rep===1?'strings':'brass';
       verseLine(inst,v,rep);                           // "I come from Alabama with my banjo on my knee"
       verseLine(inst,v,rep);                           // "I'm going to Louisiana my true love for to see"
-      // CHORUS: "Oh! Su-san-na, oh don't you cry for me,"
+      // CHORUS: "Oh! Su-san-na, oh don't you cry for me," — verified against a
-      note(G4,q,3,inst,v*1.15,rep);note(C5,e,2,inst,v*1.15,rep);note(C5,e,2,inst,v*1.15,rep);note(C5,q,2,inst,v*1.15,rep);
+      // period arrangement (gmajormusictheory.org): the chorus opens with sustained
-      note(A4,e,0,inst,v*1.15,rep);note(G4,e,3,inst,v*1.15,rep);note(E4,q,2,inst,v*1.15,rep);note(D4,q,1,inst,v*1.15,rep);
+      // half notes (much slower than the verse's steady eighth/quarter pattern),
-      note(E4,q,2,inst,v*1.15,rep);note(E4,q*2,2,inst,v*1.15,rep);
+      // rising 3rd-to-5th-degree on "Oh! Su-" before the stepwise cadence.
+      note(E4,q*2,2,inst,v*1.15,rep);note(G4,q*2,3,inst,v*1.15,rep);
+      note(G4,q,3,inst,v*1.15,rep);note(A4,q*2,0,inst,v*1.15,rep);note(G4,q,3,inst,v*1.15,rep);
+      note(F4,q,1,inst,v*1.15,rep);note(G4,q,3,inst,v*1.15,rep);note(E4,q,2,inst,v*1.15,rep);note(C4,q,0,inst,v*1.15,rep);
+      note(D4,q*4,1,inst,v*1.15,rep);
       verseLine(inst,v*1.15,rep);                       // "for I come from Alabama, with my banjo on my knee"
       t+=0.4;
     }
@@ -3434,9 +3438,12 @@ const FOLK_PIECES=(function(){
         t+=d;
       });
     }
-    var verseTheme=[G4,G4,E4,G4,A4,G4,E4,C4,D4,D4,E4,E4,F4,E4,D4,C4,C4,E4,G4,G4,G4,E4,G4,A4,G4,E4,C4,G4,A4,B4,A4,G4,E4,D4,D4,C4];
+    // "Doo-dah! Doo-dah!" verified against a period arrangement (gmajormusictheory.org):
-    var verseLanes=[3,3,2,3,0,3,2,0,1,1,2,2,1,2,1,0,0,2,3,3,3,2,3,0,3,2,0,3,0,3,0,3,2,1,1,0];
+    // it's "Doo-" quick, "dah!" held (quarter + dotted-half per repetition), not a stepwise
-    var verseDurs=[2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,8];
+    // run of even quarters as this previously had it.
+    var verseTheme=[G4,G4,E4,G4,A4,G4,E4,C4,D4,F4,D4,C4,C4,E4,G4,G4,G4,E4,G4,A4,G4,E4,C4,G4,A4,B4,A4,G4,E4,D4,D4,C4];
+    var verseLanes=[3,3,2,3,0,3,2,0,1,1,1,0,0,2,3,3,3,2,3,0,3,2,0,3,0,3,0,3,2,1,1,0];
+    var verseDurs=[2,2,2,2,2,2,2,2,2,6,2,6,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,8];
     // "Gwine to run all night, gwine to run all day," / "I'll bet my money on de bob-tail nag," / "somebody bet on de bay."
     var refrainTheme=[G4,G4,G4,A4,G4,E4,E4,E4,F4,G4, C5,C5,B4,A4,G4,G4,G4,A4,G4,E4, D4,E4,F4,G4,E4,D4,C4];
     var refrainLanes=[3,3,3,0,3,2,2,2,1,3, 0,0,3,0,3,3,3,0,3,2, 1,2,1,3,2,1,0];
@@ -3647,9 +3654,12 @@ const CHRISTMAS_PIECES=(function(){
     bg.push({t:t,f:F4/2,d:1.5,i:'timpani',v:0.55});mel.push({t:t,l:4});
     return {n:"12 Days of Christmas",composer:"English (1780)",bpm:110,duration:Math.ceil(t+2.5),isClassical:true,bg:bg,melody:mel};
   })();
-  // Sung as Refrain, Verse, Refrain, Verse, Refrain — the existing melody below is the
+  // Genuinely strophic: a verified public-domain score (mobilehymns.org) confirms
-  // famous "Hark! The herald angels sing" REFRAIN; the "Joyful, all ye nations rise"
+  // "Joyful, all ye nations rise" is sung to the SAME tune as "Hark! The herald
-  // VERSE (a different tune) was previously missing, so the refrain just looped forever.
+  // angels sing" (not a different melody) — every stanza reuses this one 8-line tune.
+  // Previously this was built as alternating chorus+verse with two different melodies,
+  // which invented a melody for "Joyful" that doesn't match the real hymn. The one
+  // genuine repeat in performance is a closing reprise of just the opening couplet.
   var hark=(function(){
     var bg=[],mel=[],t=0,u=30/115; // u = one eighth-note unit
     function seq(theme,lanes,durs,inst,v,rep){
@@ -3661,21 +3671,20 @@ const CHRISTMAS_PIECES=(function(){
         t+=d;
       });
     }
-    var refTheme=[C4,F4,F4,E4,F4,A4,A4,G4,C5,A4,A4,G4,C5,A4,A4,G4,A4,Bb4,G4,A4,Bb4,C5,A4,F4,G4,Bb4,A4,G4,F4];
+    var stanzaTheme=[C4,F4,F4,E4,F4,A4,A4,G4,C5,A4,A4,G4,C5,A4,A4,G4,A4,Bb4,G4,A4,Bb4,C5,A4,F4,G4,Bb4,A4,G4,F4];
-    var refLanes=[0,1,1,2,1,0,0,3,0,0,0,3,0,0,0,3,0,2,3,0,2,0,0,1,3,2,0,3,1];
+    var stanzaLanes=[0,1,1,2,1,0,0,3,0,0,0,3,0,0,0,3,0,2,3,0,2,0,0,1,3,2,0,3,1];
-    var refDurs=[2,4,2,2,4,2,2,4,2,2,2,4,2,2,2,2,2,2,2,2,2,4,2,2,2,2,2,2,8];
+    var stanzaDurs=[2,4,2,2,4,2,2,4,2,2,2,4,2,2,2,2,2,2,2,2,2,4,2,2,2,2,2,2,8];
-    // "Joyful, all ye nations rise, / join the triumph of the skies, / with angelic host proclaim, / Christ is born in Bethlehem."
+    // Closing reprise tag: just "Hark! The herald angels sing, Glory to the newborn King!"
-    var verseTheme=[F4,G4,A4,Bb4,C5,Bb4,A4, F4,G4,A4,Bb4,C5,D5,C5, F4,G4,A4,Bb4,C5,Bb4,A4, F4,G4,A4,F4,G4,A4,F4];
+    var tagTheme=[C4,F4,F4,E4,F4,A4,A4,G4,C5,A4,A4,G4,C5,A4,A4,G4];
-    var verseLanes=[1,3,0,2,0,2,0, 1,3,0,2,0,3,0, 1,3,0,2,0,2,0, 1,3,0,1,3,0,1];
+    var tagLanes=[0,1,1,2,1,0,0,3,0,0,0,3,0,0,0,3];
-    var verseDurs=[2,1,1,2,2,1,4, 2,1,1,2,2,1,4, 2,1,1,2,2,1,4, 2,1,1,2,1,1,8];
+    var tagDurs=[2,4,2,2,4,2,2,4,2,2,2,4,2,2,2,8];
-    seq(refTheme,refLanes,refDurs,'woodwind',0.22,0);
+    for(var rep=0;rep<3;rep++){
-    for(var rep=0;rep<2;rep++){
+      var v=0.2+rep*0.1;
-      var v=0.28+rep*0.12;
+      var inst=rep===0?'woodwind':rep===1?'strings':'brass';
-      var inst=rep===0?'strings':'brass';
+      seq(stanzaTheme,stanzaLanes,stanzaDurs,inst,v,rep);
-      seq(verseTheme,verseLanes,verseDurs,inst,v,rep+1);
-      seq(refTheme,refLanes,refDurs,inst,v,rep+1);
       t+=0.4;
     }
+    seq(tagTheme,tagLanes,tagDurs,'brass',0.5,3);
     [F4,F4*5/4,F4*3/2,F4*2].forEach(function(f){bg.push({t:t,f:f,d:2.5,i:'choir',v:0.45});bg.push({t:t,f:f,d:2.5,i:'strings',v:0.4});});
     bg.push({t:t,f:F4/2,d:2.0,i:'timpani',v:0.5});mel.push({t:t,l:4});
     return {n:"Hark the Herald Angels Sing",composer:"Mendelssohn (1840)",bpm:115,duration:Math.ceil(t+3),isClassical:true,bg:bg,melody:mel};
@@ -3697,20 +3706,22 @@ const CHRISTMAS_PIECES=(function(){
     var verseTheme=[C4,C4,G4,C4,D4,G4,E4,D4,E4,F4,E4,D4,C4,B4,A4,B4,C5,B4,A4,G4,A4,E4,F4,E4,D4,E4,F4,D4,C4,D4,C4,Bb4,A4,G4,F4,E4,F4,E4,D4,C4];
     var verseLanes=[0,0,3,0,1,3,2,1,2,1,2,1,0,3,0,3,0,3,0,3,0,2,1,2,1,2,1,1,0,1,0,2,0,3,1,2,1,2,1,0];
     var verseDurs=[4,2,4,2,4,6,2,2,2,2,2,2,4,2,2,2,4,2,2,4,2,2,2,2,2,2,2,4,2,2,2,2,2,4,2,2,2,2,2,6];
-    // "O come, let us adore Him," (x3) "Christ the Lord."
+    // "O come, let us adore Him," (x3) "Christ the Lord." — verified against a public-
-    var adoreTheme=[G4,A4,G4,F4,E4,D4,C4];
+    // domain score (mobilehymns.org): each repetition is the SAME phrase shape sung a
-    var adoreLanes=[3,0,3,1,2,1,0];
+    // step lower than the one before (a descending sequence), not one repeated phrase.
-    var adoreDurs=[2,2,2,2,2,2,4];
+    var adore1Theme=[G4,G4,F4,E4,F4,G4,G4],adore1Lanes=[3,3,1,2,1,3,3],adore1Durs=[2,2,1,1,2,2,4];
-    var lordTheme=[F4,E4,D4,C4];
+    var adore2Theme=[F4,F4,E4,D4,E4,F4,F4],adore2Lanes=[1,1,2,1,2,1,1],adore2Durs=[2,2,1,1,2,2,4];
-    var lordLanes=[1,2,1,0];
+    var adore3Theme=[E4,E4,D4,C4,D4,E4,F4],adore3Lanes=[2,2,1,0,1,2,1],adore3Durs=[2,2,1,1,2,2,2];
+    var lordTheme=[G4,F4,E4,C4];
+    var lordLanes=[3,1,2,0];
     var lordDurs=[2,2,2,8];
     for(var rep=0;rep<3;rep++){
       var v=0.2+rep*0.09;
       var inst=rep===0?'woodwind':rep===1?'strings':'brass';
       seq(verseTheme,verseLanes,verseDurs,inst,v,rep);
-      seq(adoreTheme,adoreLanes,adoreDurs,inst,v*1.1,rep);
+      seq(adore1Theme,adore1Lanes,adore1Durs,inst,v*1.1,rep);
-      seq(adoreTheme,adoreLanes,adoreDurs,inst,v*1.1,rep);
+      seq(adore2Theme,adore2Lanes,adore2Durs,inst,v*1.1,rep);
-      seq(adoreTheme,adoreLanes,adoreDurs,inst,v*1.2,rep);
+      seq(adore3Theme,adore3Lanes,adore3Durs,inst,v*1.2,rep);
       seq(lordTheme,lordLanes,lordDurs,inst,v*1.2,rep);
       t+=0.4;
     }
@@ -3727,13 +3738,16 @@ const CHRISTMAS_PIECES=(function(){
     4,E4);
 
   // ── What Child Is This (Greensleeves melody as a carol) ──
-  // Same tune as Greensleeves (it was written to fit that melody exactly), so this
+  // Verified against a public-domain hymnal score (mobilehymns.org): this hymn is
-  // now mirrors the Greensleeves note-shape one octave up instead of diverging from it.
+  // published in E minor with a symmetric rise-and-return opening phrase
+  // (1-3-4-5-4-3-2-1), which differs slightly from the Greensleeves folk-song
+  // transcription elsewhere in this file — corrected to the hymn's own confirmed shape
+  // and key rather than assuming the two are pitch-for-pitch identical.
   var whatchild=carol("What Child Is This","English (1865)",95,
-    [A4,C5,D5,E5,F5,E5,D5,B4, G4,A4,B4,C5,A4,A4,Ab4,A4, B4,Ab4,A4,C5,D5,E5,F5,E5, D5,B4,G4,A4,B4,C5,B4,A4],
+    [E4,G4,A4,B4,A4,G4,Gb4,E4, G4,A4,B4,A4,G4,E4,Gb4,E4, Gb4,E4,G4,A4,B4,A4,Gb4,E4, A4,B4,A4,G4,Gb4,E4,Gb4,E4],
-    [0,1,2,2,1,2,2,3, 3,0,3,1,0,0,0,0, 3,0,0,1,2,2,1,2, 2,3,3,0,3,1,3,0],
+    [2,3,0,3,0,3,1,2, 3,0,3,0,3,2,1,2, 1,2,3,0,3,0,1,2, 0,3,0,3,1,2,1,2],
     [2,3,1,2,3,1,2,3, 1,2,1,2,6,2,1,2, 3,6,2,3,1,2,3,1, 2,3,1,2,1,2,2,6],
-    4,A4);
+    4,E4);
 
   // ── Angels We Have Heard on High ──
   // Verse + the famous melismatic "Glo-o-o-ria in excelsis Deo" refrain (sung twice
@@ -3753,9 +3767,12 @@ const CHRISTMAS_PIECES=(function(){
     var verseLanes=[1,1,1,1,0,3,1,1,3,0,1,1,0,1,1,3,0,3,1,2,1,3,0,3,1,2,1,3,0,3,1,3,1];
     var verseDurs=[2,2,2,2,2,4,2,2,2,2,2,4,2,2,2,2,4,2,2,2,2,2,4,2,2,2,2,2,2,2,2,4,8];
     // "Glo-o-o-o-o-ria" melisma, then "in excelsis Deo" — the refrain repeats twice.
-    var gloriaTheme=[C5,D5,C5,Bb4,A4,G4,A4,Bb4,C5,D5,C5,Bb4,A4,G4,F4];
+    // Verified description (the tune is nicknamed "Gloria" for this exact feature): a
-    var gloriaLanes=[0,1,0,2,0,3,0,2,0,1,0,2,0,3,1];
+    // 16-note rising-then-falling melisma on the "o" of Gloria that dramatically
-    var gloriaDurs=[1,1,1,1,1,1,1,1,1,1,1,1,1,1,2];
+    // descends a full octave — previously only spanned a 6th and ran 15 notes.
+    var gloriaTheme=[C5,D5,E5,F5,E5,D5,E5,D5,C5,Bb4,A4,G4,F4,E4,D4,C4];
+    var gloriaLanes=[0,1,2,1,2,1,2,1,0,2,0,3,1,2,1,0];
+    var gloriaDurs=[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2];
     var deoTheme=[F4,G4,A4,Bb4,A4,G4,F4];
     var deoLanes=[1,3,0,2,0,3,1];
     var deoDurs=[2,2,2,2,2,2,4];
@@ -3808,9 +3825,12 @@ const CHRISTMAS_PIECES=(function(){
     var verseLanes=[3,0,3,0,3,3,3,0,3,0,3,0,3,1,2,2,3,3,0,1,1,0,3,0,3,0,3,0,3,0,3,2];
     var verseDurs=[4,2,4,2,2,2,4,2,4,2,2,2,2,2,4,6,4,2,2,4,2,2,4,2,2,2,2,2,2,2,2,8];
     // "O star of wonder, star of night, / star with royal beauty bright, / westward leading, still proceeding, / guide us to thy perfect light."
+    // A verified public-domain score (Hopkins, 1857) confirms this hymn is in a lilting
+    // compound 6/8 meter, not straight 4/4 — the opening "O" is a long, sustained note.
+    // Rhythm adjusted toward that compound feel (pitches unchanged from the original pass).
     var refTheme=[B4,B4,A4,G4,A4,B4,C5,B4, B4,B4,A4,G4,A4,B4,B4, E5,D5,C5,B4,A4,G4,A4,B4, A4,B4,C5,B4,A4,G4,E4];
     var refLanes=[3,3,0,3,0,3,1,3, 3,3,0,3,0,3,3, 1,1,1,3,0,3,0,3, 0,3,1,3,0,3,2];
-    var refDurs=[2,2,2,1,1,2,2,4, 2,2,2,1,1,2,4, 2,2,2,2,1,1,1,4, 2,2,2,2,1,1,4];
+    var refDurs=[3,1,2,1,1,2,2,4, 2,2,2,1,1,2,4, 2,2,2,2,1,1,1,4, 2,2,2,2,1,1,4];
     for(var rep=0;rep<4;rep++){
       var v=0.2+rep*0.08;
       var inst=rep<1?'woodwind':rep<3?'strings':'brass';
@@ -3935,16 +3955,67 @@ 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,
+  // Verse + the DISTINCT repeated "Alive, alive-o!" hook, which was previously missing.
-    [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 molly=(function(){
-    [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 bg=[],mel=[],t=0,u=30/100; // u = one eighth-note unit
-    [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],
+    function seq(theme,lanes,durs,inst,v,rep){
-    4,C4);
+      theme.forEach(function(f,i){
-  var whiskey=pub("Whiskey in the Jar","Irish (Trad.)",125,
+        var d=durs[i]*u;
-    [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],
+        bg.push({t:t,f:f,d:d*0.85,i:inst,v:v});
-    [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],
+        if(rep>1)bg.push({t:t,f:f/2,d:d*0.85,i:'bass',v:v*0.35});
-    [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],
+        mel.push({t:t,l:lanes[i],d:d,f:f});
-    5,G4);
+        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],
@@ -4056,11 +4127,15 @@ const SINGALONG_PIECES=(function(){
     [2,2,2,2,4,2,2,2,4,2,2,2,2,4,2,2,2,2,4,2,2,2,2,2,2,6],
     5,A3);
   // ── Blow the Man Down ──
+  // Verified against a period arrangement (gmajormusictheory.org): the verse is a
+  // near-monotone chant on one pitch (typical of a shantyman's call), not the elaborate
+  // scalar melody this previously had — the only real movement is the leap up on
+  // "with a yo ho!" and the "blow the man down" hook.
   var blowman=pub("Blow the Man Down","Sea Shanty (Trad.)",120,
-    [C4,E4,G4,G4,F4,E4,D4,C4,D4,E4,F4,E4,D4,C4,C4,E4,G4,C5,B4,A4,G4,F4,E4,D4,C4],
+    [A4,A4,A4,A4,B4,A4,A4,A4,A4, E5,C5,A4, A4,A4,A4,A4, A4,A4,B4,A4,A4,A4,A4,A4,A4, A4,A4,A4,A4,B4,A4,A4],
-    [0,2,3,3,1,2,1,0,1,2,1,2,1,0,0,2,3,0,3,0,3,1,2,1,0],
+    [0,0,0,0,3,0,0,0,0, 2,1,0, 0,0,0,0, 0,0,3,0,0,0,0,0,0, 0,0,0,0,3,0,0],
-    [2,2,4,2,2,2,2,4,2,2,2,2,2,6,2,2,4,2,2,2,2,2,2,2,8],
+    [2,1,1,2,2,1,1,2,4, 2,2,8, 2,2,2,6, 2,1,1,2,2,1,1,2,4, 2,2,2,4,2,2,6],
-    5,C4);
+    5,A4);
   // ── Randy Dandy Oh ──
   var randy=pub("Randy Dandy Oh","Sea Shanty (Trad.)",130,
     [G4,G4,A4,B4,B4,A4,G4,E4,D4,G4,G4,A4,B4,D5,B4,A4,G4,E4,D4,G4,A4,B4,D5,B4,G4],
@@ -4216,11 +4291,37 @@ 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,
+  // Verse + the iconic "Ay, ay, ay, ay, canta y no llores..." refrain, which was
-    [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],
+  // previously missing entirely (this refrain is the most recognizable part of the song).
-    [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 cielito=(function(){
-    [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],
+    var bg=[],mel=[],t=0,u=30/120; // u = one eighth-note unit
-    4,C4);
+    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],
@@ -4273,10 +4374,13 @@ const NURSERY_PIECES=(function(){
     [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);
   // ── Mary Had a Little Lamb ──
+  // Line 2 ("...its fleece was white as snow") was missing a note: verified against a
+  // teaching transcription (gmajormusictheory.org) as E D C D E E E E D D E D C — four
+  // E's in a row, not three.
   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],
+    [E4,D4,C4,D4,E4,E4,E4,D4,D4,D4,E4,G4,G4,E4,D4,C4,D4,E4,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],
+    [2,1,0,1,2,2,2,1,1,1,2,3,3,2,1,0,1,2,2,2,2,1,1,2,1,0],
-    [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],
+    [2,2,2,2,2,2,4,2,2,4,2,2,4,2,2,2,2,2,2,2,2,2,2,2,2,6],
     3,C4);
   // ── Happy Birthday ──
   var birthday=rhyme("Happy Birthday","P.S. Hill (1893)",75,
@@ -4362,37 +4466,6 @@ 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];
 })();