立body機motion is the 4th track on the "Attack on Titan" Original Soundtrack. As with all the other pre-The Final Season OSTs, it was composed and arranged by Hiroyuki Sawano.
Title
If the rōmaji in the title (立body機motion) is replaced with the corresponding kanji for the words (体 for body and 動 for motion), the resulting title would be omni-directional mobility (立体機動 Rittai kidō?), which refers to the ODM gear.
Musical motifs
The track is split into 2 parts. The first part (0:00-3:32) contains a melody (0:52-1:28 and 2:25-2:58) that is used as a motif in 進撃st-hrn-gt20130629巨人 (0:52-1:52). The second part (3:33-5:37) incorporates a melody very similar to the The Reluctant Heroes chorus (4:28-4:58).
All occurrences
- Episode 3:
- Sasha goes feral over some bread
- Eren tries and fails to pass the Cadet Corps's omni-directional mobility gear test
- Episode 4 - The 104th Cadet Corps graduation ceremony
- Episode 5:
- Eren attacks the Colossal Titan (2nd part)
- Eren's squad leaps into combat
- Episode 8 - Jean leads the retreat back to the HQ
- Episode 11 - Opening narration
- Episode 12 - Eren fails to control his Titan form
- Episode 13.5 - Eren bursts out of a Titan
- Episode 16 - The Levi Squad rides off to the assembly
- Episode 17 - The Scout Regiment's 57th Expedition begins
- Episode 20 - Opening narration (2nd part)
- Episode 21 - The Levi Squad tries to take down the Female Titan
- Episode 38 - The Scout Regiment reach Shiganshina
- Attack on Titan Part 1: Guren no Yumiya - Eren's squad leaps into combat