GR translation: that are implicit in this machine’s design

[Mike Jing]

V584.19-27   . . . well here come these cancan girls now, Folies-Bergeres
maenads, moving in for the kill, big lipstick smiles around blazing
choppers, some Offenbach galop come jigging in now out of the loudspeakers
that are implicit in this machine’s design, long gartered legs kicking out
over the agony of this sad spherical permanent AWOL, all his companions in
the chute vibrating their concern and love, feeling his pain but helpless,
inert without the spring, the hustler’s hand, the drunk’s masculinity
problems, the vacuum hours of a gray cap and an empty lunchbox, . . .

The thing that "are implicit in this machine’s design" is the music, is
that correct?  I know which piece of music is being referred to, I'm just a
little bit confused by the sentence structure.
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