BUP Harmonic Wheel
Fast offline key wheel for harmonic mixing and DJ sets
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BUP Harmonic Wheel - Fast offline key wheel for harmonic mixing and DJ sets

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BUP Harmonic Wheel is a fast, offline harmonic mixing reference for DJs and music producers. Explore compatible musical keys instantly with an interactive key wheel, prepare smoother transitions, and keep a practical key reference available during DJ sets or production sessions. No account, no ads, no tracking, and no internet connection required.

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Hi Product Hunt, I’m Berk, the maker behind BUP Apps and also a DJ, music producer, and composer. I built BUP Harmonic Wheel because I wanted a simple, fast reference for harmonic mixing that I could open during preparation or a set without dealing with accounts, subscriptions, ads, or unnecessary features. The app is intentionally focused: an interactive key wheel, compatible-key references, light and dark themes, and full offline use. It’s designed for DJs and producers who already understand the basics and simply want a clean tool that gets out of the way. I’d be especially interested in feedback from DJs and music producers on what would make the tool more useful in real-world sets and studio workflows.