WOW! This was so helpful to me, an accordion enthusiast, also a composer, who couldn't ever touch a real one and wanted to compose for it. I didn't have much chance to ask a player and was always confused by the unrealistically fast chord changes. Now I know. It was a shame that I didn't learn about it up to this point in my life, so I thank you so much for this very effective class. And that's a beautiful sounding instrument. Thank you, Mr. Kassl. Very useful for composers.
Great job of describing all the attributes that are so neat and often only available on an accordion. I have often said that the accordion is perhaps the ultimate instrument for creative music. The bellows is so much more than a pump to make music....it is capable of a huge range of dynamics and expression and unlike a piano can increase in volume while the note is held down and than reduce....a piano only looses volume one the key is pushed down. The dynamics are able to mimic what you can do on a violin or wind instrument. The only thing you missed is describing a piano accordion and the differences between it and a chromatic or Bayan keyboard. I play piano accordion with converter free base....another difference is the system of the button layout. Yours is C system layout....my free bass is B system....my left hand bass notes are lowest notes when playing closer to my leg...C system is just the opposite. Again this is a fantastic video and will keep this bookmarked when others ask me about the accordion abilities.
I was actually wondering whether it was a B system or C system! Thanks! Another nice mention would be pointing out the difference between a chromatic button accordion and a diatonic button accordion. Some countries or regions of a country specifically use the diatonic accordion most often, or chromatic button, or piano accordion. So if the composer is wanting to write for a specific style, then they should be aware of which accordion is used that style. I really enjoyed the explanation of pitch bending, that it's achieved by slightly lifting up on the button and increasing the bellow pressure. This really explains why I've been doing it on accident. See, my used vintage accordion is missing the air button, so I press down on lots of keys/buttons in order to close it quickly. Sometimes I accidentally pitch bend and then I'm trying to figure out how to recreate it 😅
He has a B system accordion, he doesn't have the bayan configuration in left hand which puts deepest notes near the leg. His C is on the third row, C system accordions have the C on the first row
