Web Harmonium is a free browser-based Indian harmonium that lets you play Sargam notes using your computer keyboard, mouse, or touch screen — no app installation required.
What is Web Harmonium?
Web Harmonium is a browser-based musical instrument that reproduces the sound and layout of a traditional harmonium, designed for riyaaz (practice), melody testing, and quick accompaniment. It takes input from keyboard presses, mouse clicks, or touch taps and outputs harmonium audio with adjustable reverb, volume, and additional reed emulation. The tool runs entirely in the browser on desktop and mobile devices; no download or sign-up is needed. It is provided as a free online utility with no stated company or developer attribution.
Key Features
- Sargam note labels — Every key is labeled with Indian solfège (Sa, Re, Ga, Ma, Pa, Dha, Ni) and the corresponding Western note (C4, D4, etc.), making note finding immediate for beginners.
- Keyboard shortcuts — A full mapping of computer keys (e.g., A for Sa, S for Re, W for r/ C#) lets you play two full octaves without lifting your hands from the keyboard.
- Sound controls — Adjustable volume slider, reverb on/off toggle, transpose (-6 to +6 semitones), octave shift (4 to 5), and additional reeds (0-2) to shape the harmonium tone.
- Practice mode with song library — Eight preloaded songs (e.g., “Sa Re Ga Ma,” “Happy Birthday,” “Ode to Joy,” “Raghupati Raghav”) play guided phrases on the keyboard. Users can loop a phrase, adjust playback speed (Original/Slow/Extra Slow), and see upcoming notes via rolling notation.
- Practice Trace — A real-time log of notes you play (in Sargam) appears above the keyboard, with a clear/copy button. Guided demos are excluded so you see only your own input.
- Metronome and mistake tracking — An optional click track and a counter showing correct notes, mistakes, and completed phrases support structured practice.
Who is it for?
- Hindustani vocalists — Use the Sargam labels and transpose control to match your pitch for scale drills or song practice.
- Harmonium beginners — Learn note positions by playing along with the guided song demos at reduced speed.
- Music teachers — Demonstrate phrases in a browser without needing a physical harmonium; students can replay the same phrase at home on any device.
- Students of Indian classical music — Practice raga phrases (e.g., the included Raga Durga Pakad) with the metronome and loop function for repetitive riyaaz.
What can you do with Web Harmonium?
- Practice Sa Re Ga Ma scales — Use the “Sa Re Ga Ma” demo to hear the ascent and descent, then repeat with the keyboard shortcuts while the Practice Trace records your accuracy.
- Learn melodies by ear — Choose “Happy Birthday,” “Twinkle Twinkle,” or “Vaishnav Jan To”; the rolling notation shows the next note above the keyboard as the demo plays, helping you follow the phrase visually and aurally.
- Quick accompaniment — Set the transpose and octave to match a singer’s pitch, turn on reverb and additional reeds, and play live accompaniment using the keyboard.
How does it work?
Click or tap the “Click or tap to initialize audio” button to enable sound. Then press mapped keyboard keys (see the shortcut guide under the keyboard), click the on-screen keys with a mouse, or tap them on a touch device. Adjust volume, reverb, reeds, and octave using the controls below the keyboard. To practice a song, choose one from the library, set playback speed, and press “Play Demo” to hear a guided phrase; press “Practice” to play along while the tracking counters update.
FAQ
Is Web Harmonium free to use?
Yes. The web harmonium is completely free to use in the browser with no paid tiers, subscriptions, or feature locks.
Does it work on mobile?
Yes. The web harmonium responds to touch input on phones and tablets, so you can tap notes and controls without a physical keyboard.
