Virtual Piano - 49 Keys

A web-based virtual piano with 49 keys (C4-B7) that allows users to play using keyboard or mouse, featuring multiple instruments and auto-play functionality.

Features

• Full 49-key piano (4 octaves from C4 to B7)
• 4 instruments: Piano, Organ, Acoustic Guitar, and EDM
• Volume control
• Mouse and keyboard support
• Keypress history display
• Auto-play with custom key sequences
• Adjustable playback speed

Usage

Playing the Piano

• Mouse: Click on piano keys
• Keyboard: Use mapped keys (see keyboard guide on the interface)

Auto-Play Sequences

1. Enter key sequence in the input box
2. Adjust playback speed if needed
3. Click "Play Music"

Keyboard Mapping

• Octave 4:

  • White keys: A (C4), S (D4), D (E4), F (F4), G (G4), H (A4), J (B4)
  • Black keys: W (C#4), E (D#4), T (F#4), Y (G#4), U (A#4)

• Octave 5-7:

  • See keyboard guide on interface

Installation

1. Download all files
2. Open index.html in a modern browser

Project Structure

• index.html - HTML structure
• css/style.css - Styling
• js/audiosynth.js - Sound synthesis library
• js/script.js - Interactive functionality

Browser Compatibility

Works best on modern browsers (Chrome, Firefox, Edge, Safari).

Credits

Thanks to Keith Whor for the AudioSynth library.

License

MIT License

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© 2025 Virtual Piano Project