How to turn a playlist into one beat-mixed DJ set (Power Set)

A Power Set is a playlist from your crate, beat-mixed into one file. You arrange the order; the mix engine does the transitions the way a DJ would on a good night, and never lets an outro drag.

Steps

1. Open Power Set in the top navigation. The left pane is your collection (every finished song in your crate, laid out like a rekordbox browser); the right pane is the playlist.
2. Add songs. Click + on a row, double-click it, use Add all shown after filtering by genre or searching, or Import playlist to bring in a rekordbox export.
3. Arrange the order. Drag rows, use the arrows, or press Sort by BPM, Harmonic order (a walk round the Camelot wheel where every step is a compatible key) or Shuffle.
4. Pick the set tempo. Auto uses the middle tempo of the playlist; Lowest or Highest locks to the slowest or fastest song; Custom takes a number. Songs more than 8 percent away from the set tempo are flagged in the playlist.
5. Choose the Blend (how many bars of the new intro run under the old song: 4 to 32) and the Tail (how long the old drums ride after the new vocal lands: cut, 2, 4 or 8 bars). Leave Bass swap on the bar on unless you want a gentler hand-over.
6. Name the set, put your DJ name in Mixed by, and press Build the Power Set. The button shows the credits: one per song.
7. Watch the stages (beat-mixing, storing, drawing the cover) and play the result on the page. Click any line in the tracklist to jump to that song.
8. Download the MP3 or WAV, the cover, the tracklist and the CUE sheet, or copy the share link.

What the engine does

• Vocal to vocal. For every pair of songs, the mix point is the bar where the outgoing vocal stops (the start of its outro). The incoming song is placed so that its first vocal lands on that same bar.
• The intro is the blend. The incoming song's drums-only intro plays under the outgoing song for up to the blend length. If the intro is longer than the blend, the extra bars are skipped so nothing stacks under the old vocal.
• Bass swap. Lows switch from the old song to the new one on the bar, the way you would flick the low EQ. Highs cross with an equal-power curve over the blend and the tail.
• One tempo, one grid. Every song is time-stretched (pitch kept) to the set tempo, and because Club Ready Music tracks hard-start on beat one, bar lines stay locked across the whole set.
• One level. The finished set gets one fixed gain and a true-peak limiter. Nothing pumps.

Tips

• Keep the set within a few BPM for the most natural sound; use the stretch percentage in the BPM column as a guide.
• Harmonic order plus Sort by BPM is a good starting point: sort by BPM first, then harmonic order for the smoothest walk.
• Short intros and outros on your songs make tighter transitions. Sixteen-bar intros with a 32-bar outro and the default 16-bar blend give classic peak-time hand-overs.