The concertina is an instrument that features heavily in European folk music, of which there are a variety of types. [Xcott Craver] has built one, an anglo concertina of the type you may recognise accompanying sea shanties, but this is no ordinary squeezebox. Instead it’s an electronic concertina, and it’s a project with a significant attention to detail.
Perhaps the most obvious thing most of us know about a concertina is that it’s an instrument with two ends separated by a set of bellows, and manipulation of the bellows lends a lot to the music it produces. This instrument doesn’t have bellows, but its innovation is to simulate them through means of a load cell. The two sides of the wooden chassis are fixed, but the force exerted on them is measured.
The keys are Cherry MX switches with custom keycaps, mounted on a pair of PCBs. Driving the whole thing is a Teensy 4.0, and to avoid unfortunate accidents with ripped-out connectors there’s a USB extension lead as a bit of strain relief. You can hear the result in the video below.
This is like no other instrument we’ve seen here, though we’ve had a few electronically enhanced conventional concertinas and accordions. We like it for its interesting design.
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This articles is written by : Nermeen Nabil Khear Abdelmalak
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