Got my first concertina yesterday, I'felt completely lost since I only play piano, then looking on youtube I couldn't find good tutorials, thank you for this !
Someone told me that concertinas are diatonic, claiming that the same button makes two different tones depending on whether the bellows are inflated or deflated. Is that true of all concertinas, or is that only the anglos?
Yes, I sell them online at folkworldmusicstore.mybigcommerce.com/concertinas/ There are different types, but the Stagi Hayden-duet is my favorite. Thanks for asking.