Web Harmonium — Free Online Harmonium Keyboard & Simulator

Free online harmonium with Sargam labels, 8 ragas, practice mode, tabla, tanpura, recording & MIDI support — right in your browser

Keyboard Support

Dual-octave 25-key computer keyboard mapping with MIDI support for fast, natural play.

No Download

Open the full harmonium studio instantly in your browser. No download, no plugins, no account.

Free to Use

3 reed types, 5 pull stops, transpose, reverb control, presets & recording — all free, no sign-up.

Classical Practice

Practice with 5 alankar patterns, score tracking, a 5-taal metronome, and tabla accompaniment for daily riyaz.

Sargam System

SaC
ReरेD
GaE
MaF
PaG
DhaA
NiनीB

Keyboard Shortcuts

White Keys

ASDFGHJK

Black Keys

WETYU

Playing Techniques

Meend (The Slide)

Smooth gliding between notes for emotional expression

Gamak (Tremolo)

Rapid oscillation between adjacent notes

Kan (Grace Note)

Quick grace notes for ornamentation

Andolan (Vibrato)

Gentle vibrato for expression

Technical Details

  • Reed System3 voices: Female, Male & Organ with ADSR envelope control
  • Keyboard25-key dual-octave layout with MIDI input support
  • BellowsVirtual bellows with smooth pressure dynamics
  • Tuning±6-semitone transpose with built-in pitch reference
  • Stops5 pull stops: Chorus, Tremolo, Drone, Reverb & Coupler

How to Play Web Harmonium

1

Open Web Harmonium

Visit www.web-harmonium.online in any modern browser — Chrome, Firefox, Edge, or Safari. It loads instantly.

2

Play Notes

Press keys on your computer keyboard or tap the on-screen keys. Each key shows its Sargam label.

3

Customize Sound

Shape your sound with 3 reed types, 5 pull stops, reverb mix, transpose, and ADSR controls. Save up to 10 presets for quick recall.

Blog

Luthier's Journal

Reflections on the intersection of ancient craftsmanship and modern synthesis.

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How to Tune a Harmonium at Home: A Practical 440 Hz vs 432 Hz GuideFeatured
April 14, 2026/11 Min Read

How to Tune a Harmonium at Home: A Practical 440 Hz vs 432 Hz Guide

Tuning a harmonium at home takes three things — a chromatic tuner app, a fine reed file, and patience. Raise a reed's pitch by filing material off its free tip; lower it by placing a pinprick of beeswax near the tip. The real decision, before you touch any reed, is which reference pitch to tune to: A440 (the Western standard) or A432 (the traditional Indian standard aligned to vocal Sa).

Why Does My Harmonium Sound Flat? 5 Common Causes and How to Fix Each
April 14, 2026/10 Min Read

Why Does My Harmonium Sound Flat? 5 Common Causes and How to Fix Each

A harmonium sounds flat — dull, weak, or pitch-dead — almost always for one of five reasons: a stuck reed, humidity swelling the reed board, uneven bellows pressure from the player, reeds that have drifted out of tune, or long-term structural damage. The first three you can diagnose and fix yourself in under an hour. The last two may need a reed file or a professional tuner.

Harmonium vs Keyboard for Bhajan Singing: A Vocalist's Honest Guide
April 14, 2026/9 Min Read

Harmonium vs Keyboard for Bhajan Singing: A Vocalist's Honest Guide

If you sing bhajans, kirtans, or ghazals, the instrument you choose shapes every session — your intonation, your stamina, your phrasing. A harmonium gives you a sustained, drone-like pad that locks your ear to Sa; a digital keyboard gives you dynamic expression, preset variety, and silence-on-demand. Most serious vocalists end up owning both. But the right first pick depends on three things: how often you sing, what repertoire, and whether you practice at home or on the road.

Why Web Harmonium

The harmonium, though Western in origin, has become the heartbeat of the Indian musical landscape. From the intimate halls of classical riyaz to the vibrant energy of Qawwali and Kirtan, its drone provides the canvas upon which ragas are painted.

Web Harmonium was built as a browser-based practice studio for students, singers, teachers, and accompanists. With 3 reed types, 5 pull stops, tanpura, metronome, tabla, pitch detection, multi-format recording, and 10 preset slots, it brings the harmonium's character into a more flexible daily practice workflow.

Frequently Asked Questions

Everything you need to know about the Web Harmonium online instrument