Free tools for mixing, set planning, and music theory.
Interactive key compatibility tool — click any key to see compatible mixing options.
Check if two BPMs are compatible for mixing — with half-time and double-time detection.
Visualise DJ set energy shapes — journey, peak, build, steady, and cooldown.
Check which vocal combinations work and get mixing technique suggestions.
Compare minor and major keys side by side — see how the A/B switch changes the mood.