Louis Huivenaar harmonium restorer Pt. 3 in USA tuning undulation stops on Mustel art harmonium

Louis Huivenaar, master harmonium restorer from the Netherlands visits Bronx, NY in April, 2024 to service a 1903 Mustel Art Harmonium owned by Artis Wodehouse. In Part 3 he demonstrates the tuning necessary for stops that undulatie, i.e., have a vibrato sound. This specialized tuning requires very fin adjustment and multiple tunings over many hours and a period of days to stabilize the tuning.
Part 1 of Huivenaar's overview can be seen at:
• Louis Huivenaar harmon...
Part 2:
• Louis Huivenaar harmon...

[@ianthompson9201]

Very interesting demonstration!