Besides its placement in 1998's album
Music Has The Right To Children (track #7), the song
Turquoise Hexagon Sun appears in the album
BoC Maxima (1996) and in the
EP Hi Scores (1999) as well, respectively as tracks 18 and 2.
Turquoise Hexagon Sun is also the name of their
studio in
Scotland's Pentland Hills.
The
recluse lifestyle of Marcus Eoin and Michael Sandison (i.e.
Boards of Canada), along with the
rumours of them being part of a supposed "Turquoise Hexagon Cult" have only fueled the
mythos that surrounds them and their sometimes
subliminal references to subjects like
Branch Davidians,
Number Theory,
Numerology,
Symbolism, among others.
http://www.hexagonsun.com/