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CLUSTER PIANO-WEB-EXPLORING · 25 ENTRIES · EARLIEST ENTRY 2025-01-03

Interactive piano scale explorers

This cluster comprises web-based piano tools for exploring scales, chords, and harmonic relationships, featuring virtual keyboards, chord playback, and MIDI output. The dated entry history is too thin to read a shape from, as only 3 dated entries exist before the index start, and the cluster's members are largely undated. All traction leaders show zero activity, so no single product leads on engagement.

Entry timeline

ENTRY TIMELINE

JUL 2013: 1OCT 2024: 1JAN 2025: 2JUL 2025: 1AUG 2025: 1OCT 2025: 2FEB 2026: 1MAY 2026: 1AUG 2026: 5SEP 2026: 10
JUL 2013SEP 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 8 ai-built · 12 unlabelled

Operator · 6 hobby · 1 indie · 2 open source · 11 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01air-ukulele1★22 days—ai-builthobbyWeb app that uses a webcam to let users play a virtual ukulele by forming chords and strumming, with visual feedback and tuning verification.
  2. 02piano-fall0★18 days—hobbyWeb app that visualizes MIDI files as falling piano notes with keyboard, score, and chord display entirely in the browser.
  3. 03midi-pianoroll-render0★1 mo—hobbyConverts MIDI files into piano-roll visualizations as PNG images, with layout options and chord labels.
  4. 04senoxa-your-music-canvas0★5 moliveai-builtWeb application that gives musicians an interactive visual canvas for creating and arranging musical compositions.
  5. 05scale-ninja4★11 mostaleliveai-builthobbyInteractive web tool that visualizes guitar scales, fretboard patterns, and modes like CAGED and pentatonic boxes for musicians.
  6. 06thai-instrument0★1 yrabandonedliveai-builtWeb app that lets users explore and interact with virtual Thai musical instruments online.
  7. 07piano-practice-tool0★4 mo—ai-builthobbyWeb-based piano practice tool that provides an interactive virtual keyboard, chord playback, shortcuts, and beginner music theory guidance.
  8. 08ChordPlayer0★6 mostaleliveai-builthobbyInteractive web app for exploring chord structures and hearing them on a sampled piano.
  9. 09CHORDINATER-PIANO-XL0★1 yrabandoned—indieMusic application that generates and displays piano chords in real time to help musicians learn and play songs.
  10. 10images0★1 yrabandoned—ai-builtA piano app with chord playing, skin cycling, and user accounts with subscriptions.
  11. 11music-carousel-hover0★1 yrabandonedliveai-builtInteractive web app that displays a music carousel with hover effects for browsing music items.
  12. 12Chordcat0★1 yrabandonedliveopen sourceDesktop application that identifies and names chords played via keyboard, mouse, or MIDI device, with built-in metronome and looper tools.
  13. 13Melodeon0★2 yrabandonedliveopen sourceMobile emulator that simulates playing a one row melodeon or organetto with selectable midi instruments, keys, and fascia images for practice.
  14. 14Key Signature Visualizer0★unknownliveWeb app that visualizes music scales and animates how each scale maps to its key signature for music learners.
  15. 15web-svg-pianoroll.vercel.app0★unknownliveWeb app that visualizes music as a piano roll for viewing and editing note patterns.
  16. 16Keyzz - Keyboard Events Playground0★unknownliveWeb app that interactively visualizes keyboard events and key codes for developers experimenting with keyboard input.
  17. 17コード練習アプリ0★unknownliveWeb app that lets users register piano chords and play through them as a slideshow for practice.
  18. 18コードプレイヤー0★unknownliveWeb app for playing musical chords on a virtual keyboard and visualizing their component notes.
  19. 19スケールプレイヤー0★unknownliveA web app that visualizes musical scales on a virtual piano keyboard, allowing users to select a key and view the scale notes.
  20. 20ChordToy0★unknownliveA web toy for exploring and playing musical chords.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.