Editor improvements:
- Musical notation symbols (♩♪𝅗𝅥𝅝) displayed on notes with duration
- Number keys 1-5 set note values (whole/half/quarter/eighth/sixteenth), 6-8 for dotted
- Time signature selector (4/4, 3/4, 6/8, 9/8, etc.) with measure-aware grid lines
- Double-click header to start playback from any position
- Singalong/non-Classical pieces no longer play background orchestra in editor preview
(only Classical genre gets conductor mode with bg track)
- Status bar shows note value name when selected
Drunken Sailor fix:
- Corrected rhythm to quarter-eighth-eighth pattern per sheet music
- Melody notes now store duration and frequency for proper editor display
Singalong pieces now tagged with isSingalong flag and store duration on melody notes.
https://claude.ai/code/session_01AqTWV8hPy2XcGP5KY2Q8zv
Replace the incorrect Drunken Sailor melody with an accurate
transcription from the traditional sheet music:
- Verse: repeating A4 eighth notes descending to D-F-A, then G4
pattern with C-E-G, building to B-C-D
- Chorus: "Way hey and up she rises" with dotted rhythms
- 3 passes with building instrumentation (woodwind → strings → brass)
- Proper Am/G chord backing from pass 2 onward
- Correct rhythmic values (eighths, quarters, dotted quarters, halves)
https://claude.ai/code/session_015qMeX3wFA1dcCaFp9p4vai
- Clicking Code button now toggles on-canvas labels above each note
showing {t, l, d} values so you can see the code right at the note
- Labels appear for ALL notes when Code mode is active (button turns blue)
- Selected note always shows its label regardless of Code mode
- Code panel still opens/closes alongside the labels for bulk editing
- Labels positioned above notes, flipping below if near lane top
https://claude.ai/code/session_015qMeX3wFA1dcCaFp9p4vai
- Playhead: yellow vertical line tracks current position during preview
with auto-scroll to keep it visible
- Note highlight: notes flash white with colored glow when the playhead
passes over them, so you can see which note is playing
- Fix editor layout: canvas was squished because ED_LANE_H calculation
didn't account for ED_HEAD header height, and screen overflow
prevented flex stretching
- Pattern mode playhead cycles through 0-4 beat range correctly
https://claude.ai/code/session_015qMeX3wFA1dcCaFp9p4vai
- START marker: green dashed vertical line at t=0 matching the END marker style
- Measure numbers: numbered (M1, M2, ...) in a header row at top of editor
- Note duration: notes support a `d` (duration) property, rendered as variable-width bars
with a draggable right edge to resize; D key to add/increase, Shift+D to remove
- Range select: Shift+drag on timeline to select a region (purple highlight)
- Copy/paste: Ctrl+C copies notes in selection (or single selected note),
Ctrl+V pastes at end of piece or at selection boundary
- Ctrl+A selects all notes, Escape clears selection, Delete removes range
- All save/load/export/import/code-view paths preserve the duration property
- Updated help text and status bar to document new controls
https://claude.ai/code/session_015qMeX3wFA1dcCaFp9p4vai
- Fix edPxPerSec() → edPxPerUnit() crash in edDraw() that prevented
canvas notes/lanes from rendering (only toolbar was visible)
- Add math gate prompt (simple addition) to openEditor(), hideSong(),
and hideGenre() for parental control consistency
- Refactor confirmReset() to use shared mathGate() function
https://claude.ai/code/session_01GSG2ymeVdsTegpaKVhQVFF
- Canvas uses flex:1 and align-self:stretch to fill remaining space
- edResize uses getBoundingClientRect for reliable width measurement
- Use double requestAnimationFrame instead of setTimeout for layout settling
- Minimum canvas height of 200px as fallback
https://claude.ai/code/session_01TFVkxq4PYhkSFGYHEi4uqY
Three ways to move edits between machines:
- "Bake into HTML" downloads index.html with edits embedded in the file
- "Edits File" downloads all edits as a JSON file
- "Load Edits" imports edits from a JSON file into localStorage
Baked edits act as fallback — localStorage overrides them on the new machine.
https://claude.ai/code/session_01TFVkxq4PYhkSFGYHEi4uqY
- Editor now works for regular rhythm patterns (rock, jazz, etc.) not just classical
- Added code view toggle showing JS array notation for notes/patterns
- Added import panel for pasting JSON note data or loading .json files
- Preview mode handles both classical (synth orchestra) and regular (drum sounds)
- buildNotes() now checks localStorage for user-saved pattern edits
- Fixed edPreview() to play drum patterns with proper bar looping
https://claude.ai/code/session_01TFVkxq4PYhkSFGYHEi4uqY
New editor screen lets users fix incorrect melodies without editing code:
- Canvas-based timeline with 5 lane rows (Red/Yellow/Blue/Green/Kick)
- Click to add notes, click existing notes to select, drag to move
- Delete/Backspace to remove selected note
- Arrow keys to nudge timing and lane
- Beat grid snapping (1/4 beat resolution)
- BPM adjustment
- Zoom slider for timeline scale
- Preview with orchestral background + melody clicks
- Save to localStorage (auto-loaded when playing the piece)
- Copy JSON to clipboard for sharing corrections
- Reset button to restore original melody
- Edit button appears in menu only for classical pieces
Edits are loaded in buildClassicalNotes() so saved corrections
are used during gameplay automatically.
https://claude.ai/code/session_01TFVkxq4PYhkSFGYHEi4uqY
Replaced 5-line tp() call with full conductor-style arrangement:
- chromRun() helper plays fast chromatic scales in background,
only every 4th note is hittable (conducting the accent peaks)
- 7 sections: intro → first chromatic runs → development →
E minor modulation → fff recapitulation → climax → coda
- Three speed tiers (0.09s, 0.065s, 0.055s per note) for
increasing intensity across sections
- Continuous Am harmonic bed with strings/bass
- Duration expanded from ~35s to ~88s
https://claude.ai/code/session_01TFVkxq4PYhkSFGYHEi4uqY
Away in a Manger: 3/4 waltz now has beat-1 emphasis with half-notes
on sustained syllables ("manger", "bed"), proper waltz feel instead
of uniform quarter notes.
O Holy Night: Encodes the characteristic 12/8 compound feel with
dotted-quarter+eighth pairs (3,1) matching the lilting "O ho-ly night"
rhythm and half-note phrase endings.
Kumbaya: Slow meditative spiritual now uses dotted-quarter+eighth
(3,1) for the 3-syllable "Kum-ba-ya" pattern with half-note on "Lord",
matching the gentle rocking feel of the original.
Nobody Knows the Trouble I've Seen: Gospel dotted phrasing with
longer held notes on key phrases, replacing uniform quarter notes.
https://claude.ai/code/session_016yrXXcwbdXGoSXkNX8UcP2
Danny Boy (Londonderry Air): Replace all-quarter encoding with proper
flowing Irish dotted rhythm. Phrases now use dotted-quarter+eighth
pairs (3,1) for melodic motion, half notes (4) on stressed syllables
like "Boy", and dotted-half (6) or whole (8) for held phrase-end
notes like "-ing", "side", "bide". Total duration increases from
~43s/pass to ~50s/pass reflecting the song's true character.
Red River Valley: Slow American ballad now has dotted-quarter+eighth
motion with half-note phrase endings instead of uniform quarter notes.
The Parting Glass: Irish 4/4 ballad now uses proper dotted feel with
stressed syllables held as half/dotted-half notes.
https://claude.ai/code/session_016yrXXcwbdXGoSXkNX8UcP2
- Changed all 7 helper functions (folk, carol, pub, spirit, world, rhyme, rag)
from hardcoded q values to BPM-based timing (q=30/bpm), making duration
units represent eighth notes at the given BPM
- Scaled all ~93 duration arrays to work correctly with new timing system
- Fixed specific rhythm patterns for well-known songs:
- Happy Birthday: correct 3/4 pickup rhythm (1,1,2,2,2,4 pattern)
- Greensleeves/What Child Is This: proper 3/4 dotted rhythm (3,1,2 pattern)
- Joy to the World: correct descending scale rhythm with dotted values
- Home on the Range: proper waltz-style quarter/half note rhythm
- She'll Be Coming Round the Mountain: correct 2/4 march rhythm
- Jingle Bells: corrected verse/chorus rhythm
- Fixed Video Game pieces: Turkish March q=0.18→0.227, Can-Can q=0.16→0.197
to match their listed BPM tempos
- Fixed duplicate Happy Birthday definition in "Classics from Prime" section
https://claude.ai/code/session_01MhCcEPfX3JqAk8zmvLXZ1g
Classical:
- Hall of the Mountain King: transpose from A minor to correct B minor key
- Toccata & Fugue: extend from 39s to 74s with full toccata continuation
- Swan Lake: transpose to B minor, fix melody contour to use repeating ascending motif
- Hungarian Dance No. 5: rewrite themes in D minor with correct melody
- Dance of the Sugar Plum Fairy: replace Für Elise melody with actual Nutcracker celesta theme
Christmas:
- God Rest Ye Merry Gentlemen: fix F natural→F#(Gb4) and Bb→B for correct E minor key
- Angels We Have Heard on High: rewrite to correct F major melody with Gloria melisma
Singalong:
- Amazing Grace: fix G5 (too high) to E5, correct melody peak
- My Bonnie Lies Over the Ocean: fix G5 (too high) to E5, correct chorus range
https://claude.ai/code/session_01MhCcEPfX3JqAk8zmvLXZ1g
The NURSERY_PIECES IIFE referenced 'baa' (Baa Baa Black Sheep) in its return
array but the variable was never defined — it was lost during the Prime genre
merge. This ReferenceError crashed the script on load, preventing all genre
tabs and rhythm lists from rendering.
https://claude.ai/code/session_01MhCcEPfX3JqAk8zmvLXZ1g
Gamepad auto-detection:
- First gamepad connect counts buttons and auto-enables matching lanes
- 5 buttons = standard Rock Band kit (lanes 0-4, default)
- 6+ buttons = auto-enables extra lanes (crash, ride, tom3)
- Shows button count in gamepad status: "🎮 Controller (9 buttons)"
- User can still manually toggle lanes on/off (overrides auto)
- Only runs once per session (doesn't re-detect on reconnect)
Keyboard remapping:
- New "⌨ Remap Keys" button in the sticky start bar
- Full-screen overlay walks through each lane: "Press key for RED"
- 300ms cooldown between steps to prevent double-triggers
- Escape cancels the remap flow
- Saved to localStorage ("drgameKeyMap") and restored on page load
- Reset All Data also resets keyboard mappings to defaults
https://claude.ai/code/session_016nhMjrAqwWXKKgBm6EQuX1
Lane system expanded to 8:
- Original 5: Red (F), Yellow (G), Blue (H), Green (J), Kick (Space)
- New 3: Crash (D), Ride (K), Tom 3 (L) — off by default
- New drum sounds: crash (long noise burst), ride (metallic ping),
tom3 (deep 90Hz tom)
Kick lane visual overhaul:
- Kick notes now fall from the TOP of the screen at full speed,
traveling through the pad lanes down to the kick hit zone
- Kick zone still centered at bottom with its own hit line
- Previously kick notes only appeared in the short bottom zone
Other changes:
- Remap system dynamically reads LANES array (supports any count)
- Gamepad default mapping extended for buttons 5-7
- laneFlash expanded to 8 lanes
- All existing songs/rhythms (lanes 0-4) work unchanged
- New lanes 5-7 are off by default, toggle on in Active Pads
https://claude.ai/code/session_016nhMjrAqwWXKKgBm6EQuX1
Moved 6 Prime songs (Twinkle Twinkle, Mary Had a Little Lamb, Happy
Birthday, Chopsticks, Lavender's Blue, Shortnin' Bread) into the
Nursery Rhymes genre using the rhyme() helper. Dropped Baa Baa Black
Sheep since it's the same melody as Twinkle Twinkle. Updated README
to reflect 18 genres, 124 synth pieces.
https://claude.ai/code/session_01FNZw4curZbJp38HFUaPXwR
New genres:
- Nursery Rhymes (10 songs): Baa Baa Black Sheep, London Bridge,
Old MacDonald, Row Row Row Your Boat, Three Blind Mice,
Itsy Bitsy Spider, Pop Goes the Weasel, Hot Cross Buns,
Jack and Jill, Humpty Dumpty — all at slow tempos (65-85 BPM)
- Ragtime (8 songs): The Entertainer, Maple Leaf Rag,
The Easy Winners, Elite Syncopations, Solace, Peacherine Rag,
The Cascades, Pineapple Rag — all Scott Joplin (public domain)
Simple/Full mode:
- Toggle in Active Pads card switches between Full and Simple density
- Simple mode enforces 350ms minimum gap between notes, removing
rapid passages while keeping the melody recognizable
- Works on both synth genres (classical/folk/etc) and rhythm patterns
- Lightweight: just a filter on the note array, no piece data changes
https://claude.ai/code/session_016nhMjrAqwWXKKgBm6EQuX1
Prime genre changes:
- Reduced tempos: Twinkle 100→75, Mary 110→80, Birthday 100→75,
Chopsticks 140→95, Lavender 110→80, Shortnin' 130→95
- Reduced passes from 3-4 to 3 across the board
- Added longer held notes in durations for more breathing room
- Simplified Chopsticks from 48 to 36 notes
- Trimmed Twinkle/Mary/Lavender note counts
Christmas genre expansion (10→20 carols):
- O Come All Ye Faithful, God Rest Ye Merry Gentlemen,
What Child Is This, Angels We Have Heard on High,
O Holy Night, Rudolph the Red-Nosed Reindeer,
Frosty the Snowman, Winter Wonderland,
Good King Wenceslas, We Three Kings
https://claude.ai/code/session_016nhMjrAqwWXKKgBm6EQuX1
Claude