Ooh that's a really interesting way of doing the bellows sensor 🤩I thought about using an air speed sensor before but was never sure if it'd be sensitive enough. lftkryo's Commordordion (on UA-cam) uses a microphone to measure the wind noise inside the bellows, which is another really fun way of doing it. I've had a few plans to try bodging a midi melodeon at some point but never quite got around to it. A midi bandoneon is a wonderfully crazy idea 😆
Howard Mitchell's videos were sufficiently compelling to convince me to try the strain gauge: ua-cam.com/video/XSPmpdLq0fc/v-deo.htmlsi=za0MMHtjPXtkgg_W I do think that allowing for some movement helps a lot - especially for bandoneon where there's basically no rapid "in-out" movement. Having said that... whilst it seems to work reasonably well for "opening" (on bandoneon, this is more a matter of controlling gravity than "pulling"), it really doesn't work for "closing" the bellows - for mine, that _requires_ a muscular push, but on a bandoneon it's done either by reconfiguring the ends to let gravity help, or by a rapid close ready to just play on the pull. I'm undecided whether to keep it as it is (and only play on the pull), or whether to make some bellows and try a pressure sensor...
@@profrat Ooh yeah I forgot about Howard's videos. It's always interesting which part of an acoustic instrument proves to be the most awkward to replicate digitally - I've seen a couple of different midi gurdies that solve the string problem in different ways too. I guess the downside with a bandoneon is fewer naff old sets of bellows lying around to salvage, compared to melodeons where I have at least a few sets lying around the house from ill-advised German eBay purchases that spent their whole life in a shed 🙈 Cereal boxes and gaffer tape might be the economical substitute 😆
Bellows is definitely an integral part of dynamics of playing bandoneon. That was my question throughout the video - what is being done to imitate them?... Your project is fascinating!!! Best of luck!
@@ChampionOrchestra Yes - I agree! I added some notes to the video details to explain some of the why - in particular, that this is primarily for learning (until the real bandoneon arrives!), and secondarily for silent/travel playing. For a "true" electronic bandoneon, I agree it really needs bellows, and I think the easiest way would probably be to adapt a real one whose reeds are beyond repair - then use hall sensors on the pads, restrict the open air flow (given the missing reeds), and use a pressure sensor. And a very long ribbon cable going through the bellows!
Ooh that's a really interesting way of doing the bellows sensor 🤩I thought about using an air speed sensor before but was never sure if it'd be sensitive enough. lftkryo's Commordordion (on UA-cam) uses a microphone to measure the wind noise inside the bellows, which is another really fun way of doing it. I've had a few plans to try bodging a midi melodeon at some point but never quite got around to it. A midi bandoneon is a wonderfully crazy idea 😆
Howard Mitchell's videos were sufficiently compelling to convince me to try the strain gauge: ua-cam.com/video/XSPmpdLq0fc/v-deo.htmlsi=za0MMHtjPXtkgg_W I do think that allowing for some movement helps a lot - especially for bandoneon where there's basically no rapid "in-out" movement. Having said that... whilst it seems to work reasonably well for "opening" (on bandoneon, this is more a matter of controlling gravity than "pulling"), it really doesn't work for "closing" the bellows - for mine, that _requires_ a muscular push, but on a bandoneon it's done either by reconfiguring the ends to let gravity help, or by a rapid close ready to just play on the pull. I'm undecided whether to keep it as it is (and only play on the pull), or whether to make some bellows and try a pressure sensor...
@@profrat Ooh yeah I forgot about Howard's videos. It's always interesting which part of an acoustic instrument proves to be the most awkward to replicate digitally - I've seen a couple of different midi gurdies that solve the string problem in different ways too. I guess the downside with a bandoneon is fewer naff old sets of bellows lying around to salvage, compared to melodeons where I have at least a few sets lying around the house from ill-advised German eBay purchases that spent their whole life in a shed 🙈 Cereal boxes and gaffer tape might be the economical substitute 😆
Bellows is definitely an integral part of dynamics of playing bandoneon. That was my question throughout the video - what is being done to imitate them?... Your project is fascinating!!! Best of luck!
Maybe some rubber, or spring, or could be bellows from any accordion, or some industrial vacuum cleaner tube type of thing...
@@ChampionOrchestra Yes - I agree! I added some notes to the video details to explain some of the why - in particular, that this is primarily for learning (until the real bandoneon arrives!), and secondarily for silent/travel playing. For a "true" electronic bandoneon, I agree it really needs bellows, and I think the easiest way would probably be to adapt a real one whose reeds are beyond repair - then use hall sensors on the pads, restrict the open air flow (given the missing reeds), and use a pressure sensor. And a very long ribbon cable going through the bellows!
Bravo Danny! Hope you find out what all the buttons do eventually!
I suspect some are booby trapped!
Excellent project. And excellent progress too - that didn't seem to take too many late nights at all!
great job!!! from Klingenthal Heeju
Thanks! Though I'm not sure it will be allowed to live in the same room as the REAL one, when it arrives!
👍