A browser-based harmonium that works with your laptop keyboard, touch input, and MIDI devices. No app, no emulator, no setup friction.
Laptop keys
Start with Sa Re Ga Ma mapped to familiar keys and practise immediately.
Touch and pointer
Tap the on-screen keys on phones, tablets, or desktop without changing modes.
MIDI ready
The player attempts Web MIDI access automatically and stays usable if the browser blocks it.
Quick guides for notes and keyboard layout
Starter quick map
Controls
Checking MIDI support
Reverb
Light ambience when audio is available
Before you play
No. Online Harmonium runs directly in the browser and supports laptop keyboard, touch, and MIDI when the browser allows it.
Yes when Web MIDI is available. The player checks for MIDI support automatically and stays usable even if access is blocked.
Yes. The on-screen keys respond to pointer and touch input, so you can rehearse simple passages on mobile devices too.
Online Harmonium keeps the flow simple so you can start playing instead of troubleshooting software.
Visit the homepage and the harmonium is already there, loaded inside the landing experience.
Press the mapped laptop keys or tap the rendered keys to hear notes and build muscle memory.
Adjust volume, octave, transpose, reed layers, and reverb to match your practice context.
If your browser and device support Web MIDI, the player will detect it without blocking the rest of the UI.
Built for quick riyaaz, lesson support, and lightweight rehearsal across desktop and mobile browsers.
Direct laptop-key mapping with an immediate starter layout for Sa through Ni.
On-screen keys respond to pointer and touch input without requiring a separate mobile UI.
Audio is initialized lazily so unsupported environments and test runners do not crash.
Volume, octave, transpose, reed layers, and reverb preferences persist locally in the browser.
The UI checks Web MIDI access and reports availability without blocking playback controls.
Open the site and play. No native app, emulator, or plugin required.
Everything you need to know before using the browser harmonium in practice or teaching.
Use Online Harmonium whenever you need a quick reference instrument for practice, class prep, or melodic sketching.