Perform creative live mixes with comprehensive DJ tools supporting both laptop-only setups and professional turntable configurations. Detect BPM and musical keys automatically to find compatible tracks, synchronize tempo and beats across up to four decks simultaneously, control playback through extensive DJ controller hardware with built-in mappings and customizable configurations, apply and chain multiple audio effects for creative sound manipulation, scratch digital files using timecode vinyl records with real turntables, toggle between vinyl control and passthrough modes mixing physical records with digital files, and contribute to international community-driven development by DJs and programmers ensuring the software remains free in both cost and freedom forever across Windows, Mac, and Linux platforms.