This one coalesced while I was thinking of other things, and ended up becoming a kind of atmospheric low-key dubsteppy kind of thing. Then when I went to track guitar after having tracked bass successfully, I had to embark on a 45-minute exploration of why my USB converter didn't seem to be passing audio. (In the end...it was a bad cable. But I had also spent time messing up the converter settings, so I had to fix them again.)

Instruments: rack of dry funk single drum hits (lots of filtering on here to roll off highs), hand claps, Linn percussion, two different electric pianos, Mellotron samples, Epi P-J bass on P, and home-made Res-O-Glas guitar.

Two convolution reverbs (one short, with auto-filter to roll off lows one long), and typical delay cascade.

Title from the fact that 27 is the prime reciprocal magic square of 1/7.