Professional harmonium sounds. Sargam notation. Raga guides.
All in your browser — no installation, no compromise.
Features
Built for musicians who refuse to compromise — whether you're a beginner learning your first Raga or a professional recording a bhajan.
Web Harmonium delivers a full seven-octave range rendered through layered reed samples recorded in a concert-hall acoustic environment. Toggle reverb on or off depending on your practice context.
See Sa Re Ga Ma Pa Dha Ni alongside C D E F G A B on every key — simultaneously. The only online harmonium that bridges Indian Sargam and Western notation for every musician.
Powered by the Web Audio API, Web Harmonium processes sound in real time with near-zero latency. No buffering. No lag. Just the harmonium, responding to every touch the way it should.
Plug in any MIDI-compatible keyboard and play with the expressiveness of physical keys. Velocity-sensitive input, multi-device support, and real-time device selection — no additional drivers needed.
Shift your harmonium up or down in semitones instantly. Playing with a vocalist in a different key? One click — done. No retuning, no setup.
A real harmonium vibrates multiple reeds per note. Web Harmonium replicates this through a reed layering system — combining multiple sample recordings per key to preserve the warm, full-bodied tone.
Learn
Indian classical music and Western theory are two distinct traditions — yet the harmonium sits at their intersection. Web Harmonium makes that intersection visible on every single key.
Whether you learned music in Mumbai or Manhattan, Web Harmonium speaks your language.
Ragas
A Raga is not just a scale — it is a complete emotional universe. Web Harmonium includes built-in guides for four of the most revered Ragas in Hindustani classical music.
One of the most widely taught Ragas and often the first learned by students of Indian classical music. Built on the Kalyan Thaat, it features a raised (tivra) Ma — the defining note that gives Yaman its distinctive, longing quality.
Characteristic: Ma♯ (F#) — the tivra Madhyam that defines Yaman
One of the oldest and most sacred Ragas, Bhairav evokes the stillness of dawn. It features komal Re and komal Dha, creating a deeply meditative interval structure central to temple music and classical khayal compositions.
Characteristic: Komal Re (C#) + Komal Dha (G#) — the morning austere quality
Raga Kafi belongs to the Kafi Thaat and is closely associated with seasonal folk and thumri traditions. Its komal Ga and komal Ni give it a warm, bittersweet quality, often used in light classical compositions and film music.
Characteristic: Komal Ga (D#) + Komal Ni (A#) — bittersweet warmth
Malkauns is a pentatonic Raga — it uses only five notes — yet produces one of the most powerful and otherworldly moods in all of Indian music. It omits Re and Pa entirely, giving it an austere, hypnotic gravity that challenges and rewards advanced players.
Characteristic: Pentatonic — no Re (D) or Pa (G), creating haunting spaciousness
Techniques
In Indian classical music, a note is only the beginning. The true art lies in how you move between notes.
A smooth, continuous glide from one note to another. In harmonium playing, Meend is simulated through rapid grace notes — a skill that defines the difference between a student and a performer.
A rapid, vigorous oscillation between two adjacent notes, creating a shimmering, urgent sound. Gamak is common in Dhrupad and instrumental compositions demanding power and energy.
A brief, ornamental touch of an adjacent note before landing on the principal note. Kan notes are the punctuation marks of Indian classical phrasing — subtle, but unmistakable when absent.
A gentle, slow oscillation on a specific note — typically komal swaras like komal Ga in Raga Bhairav. Andolan is not a decoration but a structural characteristic of certain Ragas.
MIDI
Web Harmonium integrates with any MIDI keyboard controller via the WebMIDI API. Connect your controller, select your device, and play with full velocity sensitivity. No drivers. No ASIO configuration. No latency workarounds.
Plug in via USB → Open Web Harmonium → Select device → Play
Compatible with Roland, Yamaha, Arturia, Akai, Novation and all WebMIDI-supported devices
See how it compares to alternatives.
Get Started
Navigate to webharmonium.space in any modern browser. The harmonium loads in seconds — no account, no installation. Chrome, Firefox, Safari, and Edge are all fully supported.
Press keys on your computer keyboard, tap notes on touchscreen, or connect a MIDI controller. Each key shows Sargam and Western notation so you always know where you are.
Explore the built-in Raga guides, notation theory, and technique tutorials. Start with Raga Yaman — the most approachable introduction to Indian classical music on the harmonium.
FAQ
Yes, completely free. No subscription, no account, no hidden fees. Open webharmonium.space and start playing immediately.
No. Web Harmonium runs entirely in your browser using the Web Audio API. There is nothing to download or install.
Chrome 66+, Firefox 60+, Safari 14+, and Edge 79+. For MIDI controller support, Chrome and Edge provide the best experience via the WebMIDI API.
Yes. Web Harmonium supports any MIDI-compatible controller with velocity sensitivity. Connect via USB, select your device from the in-app menu, and play immediately.
Yes. Web Harmonium is built mobile-first and supports touch input on iOS (Safari 14+) and Android (Chrome 66+). The layout adapts automatically to your screen size.
Sargam is the Indian classical music notation system, using syllables: Sa Re Ga Ma Pa Dha Ni — equivalent to Do Re Mi Fa Sol La Ti in Western solfège. Web Harmonium displays both systems on every key simultaneously.
Web Harmonium includes detailed guides for Raga Yaman, Bhairav, Kafi, and Malkauns — covering note structures, characteristic phrases, time-of-day associations, and emotional character.
A physical harmonium produces sound by directing air through metal reeds — each note typically activates multiple reeds simultaneously, creating a warm, layered timbre. Web Harmonium replicates this by combining multiple sample layers per note.
Whether you're exploring Indian classical music for the first time or returning to the harmonium after years away — Web Harmonium is ready.
Open Web Harmonium — Free→Works instantly in Chrome, Firefox, Safari, and Edge.
No account. No download. No cost.
Learn & Explore
Start playing Indian harmonium in your browser right now — no download, no app. Step-by-step guide with keyboard shortcuts, first melodies, and practice tips.
Complete Sargam chart — Sa Re Ga Ma Pa Dha Ni, all 13 notes, natural and modified, with Western equivalents and visual keyboard layout.
How to Play Harmonium Online for Free
Step-by-step beginner guide
Harmonium Keyboard Notes for Beginners
Complete Sargam chart & note reference
Sargam Notation Guide
A complete introduction to Indian solfège
How to Play Raga Yaman
Step-by-step guide for beginners
MIDI Setup Guide
Connect your controller to Web Harmonium
What is a Raga?
Indian classical music theory explained