Swift Swing is an original composition by Laur produced for maimai DX UNiVERSE PLUS, marking the artist's return to the series since his previous contribution, Mutation. Where Mutation leaned into heavier electronic territory, Swift Swing takes a decidedly different direction, a bright, rhythmically intricate blend of electro swing and dubstep built around a crisp trumpet lead that cuts through the mix. The track evokes the atmosphere of a lively big-band jazz performance, as described by its in-game flavor text: the crowd's energy rises as sharp trumpet lines give way to layered ensemble sections, with electronic elements gradually joining the acoustic instrumentation. At 150 BPM, the song maintains a brisk, danceable pulse throughout its 2-minute runtime. Swift Swing debuted on June 24, 2022, as part of the Heaven Area 5 (天界ちほー5) unlock campaign, requiring players to accumulate 600 km of in-game distance to unlock. It became freely available by default starting with the maimai DX FESTiVAL PLUS update in March 2023. The song later crossed over into CHUNITHM VERSE in July 2025 as part of the maimai でらっくす MAP 19. The MASTER chart, designed by はっぴー星人 (Happy Alien) at level 14 with a constant of 14.3, is noted for its vertical-note swing rhythm patterns similar to those found in Secret Sleuth's Re:Master chart. The music video, produced by 群青リコリス (Gunjou Licorice) and yoshimo, features a memorable appearance of animated でらっくま mascots dancing energetically, a detail players often cite for its comedic distraction during gameplay.