5
IDEAS DAILY 1 SHIPPED BEFORE SUNDOWN
Project complete: 115 ideas sparked, 23 prototypes shipped.
2026-09-15
DAY 6 OF 23 RANK #23 WEBAPP
Theme: Musical instruments

A flute

A flute customizer and physical modeling simulator with acoustic tube physics and real-time procedural Web Audio synthesis.

⚡ The Prototype // Idea #5

A flute

Built in 1.0h with Antigravity, Web Audio API, SVG, HTML5 Canvas, Tailwind CSS

tips_and_updates The 5 Morning Sparks

Things that let us play music
IDEA #1 lightbulb

Digital accordion

One of the most complicated-looking instruments

An accordion, with different setups to choose from, that you need to coordinate playing with two hands and a bellow to control, but via a keyboard. Sort of like a qwop level challenge. Left hand plays bass and chords, the right plays melody.

Simulation, Music
IDEA #2 lightbulb

Score playing scorer

Evaluates playing a score note and rhythm accurate

When playing piano, guitar, or something else, lets say for now monophonic, this will read a music sheet notation (or some computer readable translation of it) and use a microphone to display the melody played, then compare the two.

Learning, Music
IDEA #3 lightbulb

YouTube sampler

Sample and Arrange YouTube clips

Allows sampling youtube clips and arranging them. It should allow downloading a file and splicing a sample, assigning it to a track and creating music. It should let short clips to be turned into an instrument to arrange a melody, not just sample playback.

Tool, Music
IDEA #4 lightbulb

Piano Screen Overload

A piano that spawns a storm of mess

Digital keyboard, that lets you play melody effortlessly using computer keys, but every key press, something absurd happens, like a random gif is played, while floating across the screen, a visual snake game is spawned, where the snake moves randomly as you press keys, and other ridiculous things.

Generative Art, Music
IDEA #5 lightbulb

A flute

Make it custom

A flute customiser, where you can set parameter of the flute and simulate playing it. It should allow adjusting the curviness, the length, thickness, etc. Use an actual data source for the acoustic of woodwind instrument to get the relationships between these parameters into something plausible, soundwise.

Simulation, Music SHIPPED
construction

How It Was Built With AI in 1.0 Hours

1

One-shot build

One shot prompt, no adjustments, just spec

thumb_up

What Rocked

  • ✓The UI is in line with the page design
bug_report

What Broke & Fixed

  • ✗Sounds pretty bad, and the graphics are really goofy
smart_toy AI Interaction Summary
Genesis Prompt: "/spec-implementation"
Interaction Turns: 4 human turns across 87 execution steps

Key Guidance Turns:
  • Turn 2: ok
  • Turn 3: /record-implementation
  • Turn 4: 1. One shot prompt, no adjustments, just spec 2. The UI is in line with the page design 3. Sounds pretty bad, and the graphics ...

Tools Executed: view_file (23), run_command (10), replace_file_content (3), ask_question (1), grep_search (1), write_to_file (1)
Files Modified: app.py, base.html, build_static.py, day.html, db.py, flute.html, neondj.html, save_implementation.py