オーディエンスを沸かす程度の能力 feat.タイツォン (romanized as Audience wo wakasu teido no nouryoku feat. Tights-on in Asian English releases) is a Touhou Project rap arrangement by D.watt of IOSYS and the rapper らっぷびと (Rapbit), featuring vocalist タイツォン (Tights-on). The track takes its melody from Reimu Hakurei's theme 少女綺想曲 ～ Dream Battle, the Stage 4 boss theme from 東方永夜抄 ～ Imperishable Night (2004). It was created by layering rap vocals over the instrumental backing of D.watt's earlier IOSYS arrangement 月夜を二人で抜け出す程度の能力, which originally appeared on the IOSYS doujin album 東方乙女囃子. The arrangement first gained momentum outside of album sales when it was uploaded to NicoNico Douga in July 2008, where it surpassed two million views, far exceeding the original instrumental version's reach and becoming one of the more recognizable IOSYS Touhou tracks of that era. Its first physical CD release came in 2009 on 東方月燈籠セーフ！, a reprint of the 東方月燈籠 compilation. Nearly a decade after its NicoNico debut, the song was added to maimai MURASAKi PLUS on October 17, 2017, joining the game's Touhou Project song library. In maimai, the Expert chart (level 10+) was designed by はっぴー and the Master chart (level 13+) by Jack. Jack's Master chart is particularly noted for its dense slide-note sequences at the relentless 216 BPM tempo, earning a difficulty constant of 13.7. The chart has undergone multiple level revisions across maimai versions, reflecting its sustained challenge relative to the evolving difficulty curve. The song also originally featured an animated background video of Reimu Hakurei until maimai FiNALE, after which it was replaced with a static jacket image beginning with maimai でらっくす.