CONTROLS GUIDE
Sensitivity — beat detection threshold (low = more reactive)
Cooldown — minimum interval between beats (ms)
Max — force switch if no beat detected (seconds)
Pace — switch visual every Nth beat (1x=fast, 8x=slow)
Flash — screen flash on beat
DRAG & DROP / PLAYLISTS
Audio files — drop MP3s (multiple OK) to build a music playlist
Video / Image files — drop videos or images (multiple OK) to overlay on visuals
Auto toggle — audio: advance on song end / video: switch on beat + random seek
H: show/hide UI / F: fullscreen / Space: play/pause / V: add video