Beat Of Mind is a dance-electronica track composed by Hiroshi Kawaguchi (credited as Hiro「Crackin'DJ」) for the 2001 Sega Hitmaker arcade game Crackin'DJ Part 2. When maimai first launched on July 11, 2012, Beat Of Mind was included among the game's debut song lineup, making it one of the earliest tracks players could encounter in the series. Unlike many songs brought into maimai through external licensing, Beat Of Mind carries a direct Sega arcade pedigree—Crackin'DJ Part 2 was a music-themed puzzle game, and this track served as one of its stage pieces. Kawaguchi, a veteran of Sega's sound team responsible for iconic compositions in Space Harrier, OutRun, and Fantasy Zone, delivers a polished 140 BPM electronic piece that has anchored itself in maimai's GAME & VARIETY selection for over a decade. In the original maimai release, Beat Of Mind was locked behind a player level 30 requirement, giving newcomers a mid-term progression goal. This unlock condition was removed starting with maimai GreeN, making the song freely accessible from the start. The track's official in-game genre has shifted through multiple classifications across versions—ORIGINAL, ANIME & GAME, GAME, and SEGA—before settling at GAME & VARIETY in the DX era. The Re:MASTER chart, added on December 5, 2017 alongside maimai MURASAKi PLUS, totals exactly 777 notes—a number with auspicious connotations in Japanese culture (shichi-narabi). Designed by はっぴー (Happy) at level 14 (constant 14.2), the chart is distinguished by its heavy slide-note count of 129, creating a flowing, pattern-rich experience. When maimai でらっくす launched, Beat Of Mind received a newly commissioned jacket illustration and its in-game video was replaced with a static image of the updated artwork, marking the song's visual transition into the DX era.