VICE - Bring loops to life with the loop slicer plugin for Mac and Windows.
ReCycle - ReCycle is a creative tool that helps you make the most of your grooves.
Frodo - Frodo is a robust Commodore 64 Emulator for the Macintosh.
C64 Forever - C64 Forever is a revolutionary Commodore 64 emulator, preservation and support package.
Looperator - Looperator is a Multi-Effect Sequencer, chopping any audio input at the transients.
JaC64 - A Java-based Commodore 64 emulator. Runs most of C64 games and many demos.