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Overtonium is a free, open-source 32-partial additive synthesizer that gives each harmonic its own channel-style controls for tuning, envelopes, modulation, stereo placement and level.… <a class="more-link" href="https://www.synthtopia.com/content/2026/09/26/overtonium-is-a-free-open-source-additive-synthesizer-for-mac-windows-and-linux/">Read More <span class="screen-reader-text">Overtonium Is A Free, Open-Source Additive Synthesizer For Mac, Windows And Linux</span></a>
https://www.synthtopia.com/content/2026/...and-linux/


