Play Harmonium Online with Your Keyboard, Touch Screen, or MIDI

Browser audio unlocks after your first click inside the instrument. MIDI access depends on WebMIDI permission support in your browser.

If you hear nothing on load, click once inside the tool area to satisfy browser audio rules.

Why Web Harmonium Pro

Why Musicians Use Web Harmonium Pro

Everything here is aimed at helping you start faster, stay oriented on the keyboard, and practice more comfortably in the browser.

01

Studio-Quality Sound

Real harmonium samples, a controllable release envelope, and room reverb for a fuller practice tone.

02

Full MIDI Support

Scan browser MIDI devices, select an input, and start playing with external hardware immediately.

03

Multi-Reed Layers

Stack additional reeds and tune the texture from a clean solo voice to a denser ensemble feel.

04

Works Across Devices

Desktop, tablet, and phone users can all reach the same instrument without installing an app.

05

Transpose And Octave

Shift pitch quickly to match vocal range, teaching key, or rehearsal needs.

06

Free To Start

No paywall in front of the instrument, no login wall, and no onboarding steps before first note.

Guide

Harmonium Layout and Sargam Guide

Use this reference to learn the keyboard layout, understand the Sargam labels, and make better use of the built-in practice controls.

Layout

Keyboard Layout

The default QWERTY mapping centers the tonic on E = Sa and stretches below and above it for a practical melodic range.

QWERTY Reference

Lower register

S, A, `, 1, Q, 2, W cover the notes from low Pa through low Ni.

Middle register

E anchors Sa, then 4, R, 5, T, Y and 7, U, 8, I, 9, O continue upward.

Upper register

P plays upper Sa, while -, [, =, ], \, ', ; continue the upper row.

Visual labels

Each key shows note name, swara label, and the matching keyboard character.

  • Keep your right hand near E to orient around the tonic before moving through the chromatic neighbors.
  • Treat the help overlay as a live fingering map until the central rows become muscle memory.
  • If you teach beginners, start with Sa Re Ga Ma around the center before using the full range.
  • Mouse and touch input follow the same note map, which helps when demonstrating on mobile.

Sargam

Sargam System

The instrument follows Indian solfege labels and also displays chromatic variants such as re, ga, ma, dha, ni around the tonic.

Natural line

Sa, Re, Ga, Ma, Pa, Dha, Ni describe the main scale degrees.

Chromatic variants

Lowercase variants mark altered degrees around the tonic and become useful in raga work.

  • Think of Sa as a movable tonic, not a fixed absolute pitch.
  • Transpose changes the sounding key while preserving the relative Sargam relationships.
  • The instrument can also highlight scale tones for selected ragas, which is useful while demonstrating note families.

Technique

Playing Techniques

Warm Harmonium is more than a one-shot keyboard. It includes sustain, drone, recording, and a typed sequence input for quick phrase testing.

Sustain

Hold F to simulate a sustain pedal and keep notes ringing.

Drone

Switch among Sa, Sa plus Pa, or low Sa to create a reference bed before singing or improvising.

Recording

Toggle recording, replay phrases, and sketch practice patterns without leaving the browser.

Sequence input

Type either keyboard characters or swara names, then trigger a phrase for quick experimentation.

  • Start with drone plus a slow phrase to check intonation against Sa.
  • Record short exercises to compare timing and note spacing between takes.
  • Use the sequence input when you want to test a phrase before demonstrating it live.

Technical

Technical Details

These notes explain the browser limits that matter in real use so you know what to expect before you start playing or connecting hardware.

Audio start

Modern browsers require a user gesture before Web Audio can begin.

MIDI permission

WebMIDI access appears only in supporting browsers and may prompt for authorization.

Sound engine

The core uses samples plus optional oscillator fallback, with release and reverb controls.

Pitch controls

Arrow keys shift octave and transpose in semitone steps for flexible rehearsal ranges.

  • Browser playback is good for practice, teaching, and lightweight demos, but not a substitute for a fully engineered production chain.
  • If external audio feels delayed, close heavy tabs and prefer a desktop browser with stable audio permissions.
  • Keep this guide open while you practice if you want a quick reference without losing your place on the instrument.

Shortcuts

Keyboard Shortcuts

Use this shortcut map while you practice. It shows the live keyboard layout, note positions, and the most important performance controls.

Tonic

E = Sa

Upper Sa

P

Sustain

F

Record

R

Keyboard Scale

S

Play low Ma at F3.

A

Play altered low Ma at F#3.

`1Q2W

Move from low Pa through low Ni.

E

Play Sa at C4, the default tonic center.

4R5TY

Cover the middle altered and natural notes from C#4 through F4.

7U8I9O

Continue upward from F#4 through B4.

P

Play upper Sa at C5.

-[=]\';

Continue the upper register from C#5 through G5.

Performance

F

Hold sustain while you play.

R

Toggle recording.

Editing

Space

Add a separator, or play the typed sequence input when focus is inside that field.

Backspace

Undo the last notation token.

Delete

Clear the full notation line.

Esc

Toggle the built-in help overlay.

Pitch

UpDown

Shift octave up or down.

LeftRight

Transpose by one semitone.

Some browser layouts use physical key positions rather than printed legends. If your local keyboard legend differs from QWERTY, check the on-screen labels inside the instrument.

FAQ

Frequently Asked Questions

Answers for the most common browser, MIDI, and practice questions before you start playing.

If you mainly came here to play, start with the harmonium first. Come back to the guide and shortcuts when you need help with layout, Sargam, or browser setup.

Free To Play

Start Playing Harmonium Online for Free

Open the keyboard, find Sa, and start practicing right away.

Bookmark this page for daily practice, or share it with students and musicians who need a browser-ready harmonium.

Online Harmonium Keyboard with MIDI and Sargam | Web Harmonium Pro