Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
Wine - Open Source Software for running Windows applications on other operating systems.
keezy - A colorful soundboard. Play with music.
CodeWeavers CrossOver - Don't buy a Windows license, don't reboot and don't use a Virtual Machine. Try a free trial of CrossOver to run your Windows software on Mac, Linux and Chrome OS.
Splice - Music creation, collaboration, and sharing made simple.
WineBottler - WineBottler is an App to manage and wrap your Windows apps into convenient OS X apps.