2.2. Create Your First Library

1. Open the Library workspace.
2. Choose Add Folder and select a folder containing music, or use Add Files for a smaller first pass.
3. Leave Harmonic DJ open while it discovers and analyzes the supported files.
4. Use the Ready to mix filter when you only want to see tracks with completed key and BPM analysis.
5. Select a track and use the playback control to audition it.

Analysis can run across several tracks at once. The Library remains usable while work continues, and completed results survive cancellation. If a scan is interrupted, Harmonic DJ resumes the durable queue the next time the application opens.

A few dozen stylistically related tracks within a compatible BPM range are enough to learn the default workflow. Tracks spread across unrelated tempo ranges may not form a complete route with the default General Purpose profile and Same Mix BPM rule. Use Gem Finder to investigate individual pairs, or add more tracks near the BPM range you want to mix.