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Web Harmonium is a free online harmonium keyboard for browser play, notes learning, and song practice with no download.

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Web Harmonium Keyboard
Mapping Guide

The web harmonium keyboard maps your computer keys to harmonium notes so you can play harmonium online without any physical instrument. Use this guide to master the online harmonium keyboard — from Sargam and Western scales to performance shortcuts.

A
Sa / C
C Natural
S
Re / D
D Natural
D
Ga / E
E Natural
F
Ma / F
F Natural
G
Pa / G
G Natural
H
Dha / A
A Natural
J
Ni / B
B Natural
K
Sa' / C'
C' (High)
W
Re♭ / C#
E
Ga♭ / D#
T
Ma♯ / F#
Y
Pa♯ / G#
U
Dha♭ / A#
Natural Keys
Sharp/Flat Keys

Hover over keys to see keyboard mappings.

Comprehensive Scale Reference

Middle Octave (Madhya Saptak)

Sargam System

KeyNoteName
ASaShadja
SReRishabh
DGaGandhar
FMaMadhyam
GPaPancham
HDhaDhaivat
JNiNishad
KSa'(High) Shadja
WRe♭Komal Rishabh
EGa♭Komal Gandhar
TMa♯Teevra Madhyam
YPa♯(not standard)
UDha♭Komal Dhaivat

Western Mapping

KeyNoteInterval
ACRoot Note
SDMajor 2nd
DEMajor 3rd
FFPerfect 4th
GGPerfect 5th
HAMajor 6th
JBMajor 7th
KC'Octave
WC#Minor 2nd
ED#Minor 3rd
TF#Tritone
UG#Minor 6th

Performance Shortcuts

volume_up

Volume &
Expression

Use Shift to increase bellow pressure/volume.

swap_vert

Octave
Shifting

Press Arrow Up/Down to jump between saptaks.

graphic_eq

Coupler
Sustain

Hold Spacebar to toggle the coupler reed sustain effect.

How the Web Harmonium Keyboard Works

Traditional harmoniums are known for their physical reeds and bellow-driven airflow. Translating this mechanical complexity into a digital interface requires a deep understanding of keyboard ergonomics. On Web Harmonium, we have mapped the most common octaves to the home row of your computer keyboard (A through L), ensuring that both students of Indian Classical Music and Western enthusiasts can navigate the scale with minimal hand fatigue.

Why the 12-Tone Scale Matters

Unlike a standard piano, the harmonium's soul lies in the “Meend” (slurred notes) and the sustained drone. While digital triggers are binary, our mapping allows for complex ornamentation. By positioning the Komal (flat) and Teevra (sharp) notes on the top row (QWERTY keys), we mirror the visual offset of black keys on a physical instrument. This tactile consistency helps musicians develop muscle memory that is transferable to a physical instrument.

“The silence between the notes is as important as the notes themselves.”

— Classical Music Proverb

For advanced practitioners, the Web Harmonium supports multi-touch and MIDI input. When using your standard QWERTY keyboard, the latency is minimized through high-performance audio buffers, ensuring that your “Taans” (fast melodic passages) sound crisp and rhythmic. Whether you are practicing your daily Alankars or composing a new piece, understanding the keyboard layout is your first step toward mastery.

Web Harmonium Keyboard — FAQ