Zulu is professional DJ mixing software for Mac. Mix and broadcast live music, audio and Mp3s. When loading a music track onto a deck it will automatically scan the file for a beat and assign a beat per minute (BPM), and will change the tempo in the second deck for perfect synchronization and a seamless crossover. Drag and drop music into or around Zulu's interface and preview an upcoming track through headphones via a secondary audio output. Apply effects on the fly and more.