This really takes off around the 20 minute mark and goes into perpetual-ascent mode - I don't know if it's exactly "the music of flight" but it's some kind of Icarus-rock.
(I guess the bit I'm talking about is "track 3" - really more like a phase in one giant double-album-length piece. Represented by a pictogram ♡ instead of a title)
Prior to this I found the Boredoms really irritating, that sort of splatterily eclectic splurge-purge, attention-deficit-disorder jump-cut frenzy thing. Memories of seeing them live and thinking "what a waste of energy". And underneath the "craziness", just as much a product of Tokyo's legendarily amazing record shops as the daintier stuff coming out of Japan (Pizzicato Five, Cornelius) - just that here, as with other Japanoise types, it's extremes-of-music--oriented record shopping that was getting reconfigured as music-making.
But then they seemed overnight to ... not exactly "grow up' but decide that they wanted to be in the business of elevation.