Free · Add a little room echo

Instrument Room Sound Explorer for Kids

Move one clear slider to hear a close instrument or a roomy echo.

  • Clear, kid-friendly steps
  • Private in your browser
  • No signup

Hear real instruments

Instrument room sound explorer

Move one slider to hear a dry room or a roomy echo.

Private and localNo account, microphone, upload service, or outside sound server.

Your instrument lab

Small room

♩Nylon guitar15% room sound

A close sound with very little echo.

Shape the sound

Changes stay quiet until you press Play.

Chord feeling

Keep your work

Download MIDI, notes, or your project

MIDI keeps the General MIDI instrument numbers and your notes.

The first note may take a moment.

Each packaged instrument loads only when you ask for it. It stays cached in this page after that.

Built from reviewed free software. The exact WebAudioFont 3.0.4 player and readable source are kept separate at commit fd16e95ffd1e under GPL-3.0-or-later. The packaged FluidR3 sounds and sound-data files keep their MIT notices.

Source

Powered by WebAudioFont 3.0.4 + FluidR3 local instruments, an open-source library available under GPL-3.0-or-later / MIT sound data.

Three simple steps

How to use it

  1. Pick a ready example and choose one of twelve packaged instruments.
  2. Press Play or tap one sound card. Sound starts only when you ask.
  3. Save real MIDI, note data, or a project you can open again.

Private by default

Your words and choices stay in this browser tab. There are no accounts, uploads, ads, or trackers inside the tool. Close the tab and the working data is gone.