The repeated descending bassline that starts at 2:00 and re-appears at 2:45 is a reversed recording of a bass guitar, probably played by either Mike or Marcus themselves.
Both Mike and Marcus listed "Magic Teens" as a band in their respective top ten lists featured in 1999 in CMJ New Music Report. The album titles given were 'Gold' and 'Geranium', however whether this is a local band known to BoC or simply a made up band in reference to this track is unknown.[1]