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Comment by whiddershins

Anyone interested in the seaboard should check out the continuum fingerboard.

https://www.hakenaudio.com/

As a player of both i can attest the continuum takes many of these ideas farther, and encourages uniquely expressive playing as a result.

The design is electrically really interesting as well, it leveraged high precision pressure sensing (hall efect sensors) to construct a much higher x axis resolution than the number of physical sensors. Because a finger always depresses at least three mechanical bars concurrently, the software can draw a parabola through that and calculate the location of the fingertip extremely accurately.

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