This project is on GitHub. https://github.com/maculateConception/aural-player Compatibility: Supports OS X 10.10 (Yosemite) or later. Older versions of OS X not supported (Sorry!) UPDATE (7/20/2017): Code ported to Swift v3. Swift 2 code is now in a separate branch. Hello, I wrote an MP3 player app for OS X, that I call "Aural". If you feel like trying it out, you'll find the latest source code and app bundle at the GitHub link above. I did this for fun and learning, and I also intended for it to be totally open source, so, if anyone is interested in dabbling with it, whether this is all new to you or you're an audiophile/pro and feel you could greatly improve it, please help yourself to the code. The app bundle comes with a complete PDF user guide, and on GitHub, you'll find the user guide + demo videos + a developer guide with some pointers into my code. NOTE - I'm new to Swift/OS X programming and this project is still in its early days, so note that it may have bugs. But, that's where the potential for fun lies. Programmers know what I mean Any feedback/thoughts welcome ! I will try to post any updates here as they happen, but please check GitHub for the latest and greatest on this project.