A crossplatform deejaying software written in Free Pascal + Lazarus.

• Utilizes powerful beat graphs for tempo determination, navigation and syncing
• Crossfader/EQ/filter controls and simple effects
• Headphone cueing (requires sound device with quadraphonic channel support)
• Each deck can be assigned to any audio output device or speaker on the fly
• Support for MIDI controllers (configs included for Pioneer DDJ-FLX4 and Numark DJ2Go; customizable via ini files)

• I've used this in my DJ sets for years now
• No documentation yet, UI not finalized (TODO: Tutorial)
• Linux Qt5/Qt6 builds need fixing
• Lots of work left regarding code quality, GUI, features

I use FPC 3.2.2/Lazarus 4.0 to build currently. Small changes required to build with older versions.

• Windows: Primary target, stable
• Linux: Fully functional on Gtk2; Qt5/Qt6 crash on subsequent deck frame creation; Gtk3 broken UI
• Mac: Untested, please report findings

Required Lazarus packages:

• BGRAControls (can be installed via the online package manager)
• DecksGUI (included)

• BASS, BASS_FX, BASSmix (on Linux get the libs from un4seen.com)
• OvoTag
• RtMidi (if compiling with MIDI support - see rtmidi.pas for the required compiler flag depending on RtMidi version used)

• Configuration dialogs (underway)
• Divide graph Zones into layers: Tempo vs. song structure
• Improve/fix Zone system in beatgraph
• Fix/improve/speedup various visuals (esp. waveform)
• Scrolling multi-waveform display
• Improve/optimize list component
• Improve resolution of Zones: bar -> beat

A full rewrite has been started, and most TODO items will be implemented there instead.