Dance Challenge Optimized (15-30s Loop)

[K-Pop Dance Challenge Loop - 30 seconds exactly]
[HOOK START] 0:00-0:03: instrumental hook (4 bars), immediate recognition
[CHORUS FIRST HALF] 0:03-0:11: vocal hook + point choreography rhythm (8 bars)
[CHORUS SECOND HALF] 0:11-0:19: variation + ad-libs, energy build (8 bars)
[POST-CHORUS/DANCE BREAK] 0:19-0:27: instrumental, choreography showcase (8 bars)
[LOOP POINT] 0:27-0:30: matches 0:00-0:03 exactly, seamless loop
BPM: [120-135 optimal], Key: [Major for bright, Minor for cool]