It's humorous writing. "having a borderline Asperger’s-like recall" means remembering and reciting large numbers of unimportant facts with almost the same degree of obsession that people with Asperger’s syndrome (aka autism), are supposed to devote to this activity. In this case, the unimportant subject is Balearic DJ Danny Rampling (presumably he DJ'd a lot in the Balearic Islands, probably Ibiza) and his Manumission posse ("posse" is a slang word for a group of rappers or DJs, and "Manumission" is apparently some sort of dance music club or club event).
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AngliholicWhat does "in that order" mean?