Amazon.com: Bhava Studio Harmonium | Standard Edition | 42 Key | Professionally Tuned & Refined in the U.S~ Handmade in India, Ethically Sourced | Long Sustain and Warm Tonality : Musical Instruments
American foot-pump harmonium Swedish composer Gustav Hagg's 1914 Improvisation p/b Artis Wodehouse - YouTube
Harmonium history: tracing the evolution, rise and demise of the pump organ - Classical Music