Playing Experience
Playing Mode
Key Notation & Custom Labels
Key Label Style
Custom Key Notation Editor
Assign custom characters or numbers to any key.
Label Font Size
Adjust text size printed on keyboard keys
Label Contrast & Opacity
Subtle vs high-contrast printing
Instrument & Tuning
Root Sa (Tonic Pitch)
Recalculates all 12 chromatic swaras relative to your vocal pitch (Safed 1-7, Kali 1-5)
Octave Coupler (Dual Reed)
Sounds the octave (+12 semitones) reed together with each key press
Audio Engine & Performance
Low-Latency Web Audio API
Direct hardware audio buffer streaming with sub-5ms attack
Sample Caching & Offline Status
25 authentic harmonium WAV files stored in browser cache
About Harmoniumo
Application Version1.2.0
Audio ProvenanceConcert Indian Harmonium Reeds (CC0)