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The Arithmophone is a free microtonal software instrument and MIDI controller for touchscreen devices.… <a class="more-link" href="https://www.synthtopia.com/content/2025/05/16/free-microtonal-instrument-arithmophone-for-touchscreen-devices/">Read More <span class="screen-reader-text">Free Microtonal Instrument, Arithmophone, For Touchscreen Devices</span></a>
https://www.synthtopia.com/content/2025/...n-devices/
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