Day 18: A song you wished you heard on the radio—XYZ
30 days of music, except only Boards of Canada, day 18. I think this means a song that doesn't get played on the radio, but should. But I choose to interpret this to mean a rare song once heard on the radio, but which I missed.
It's no longer rare, thanks to its addition to a re-release many years later, but: XYZ.
Boards of Canada played out with this on their John Peel session in 1998, but it was excluded from the subsequent Peel Session release, perhaps because its sampling of It Would Be Like Samoa by Edgar Froese wasn't cleared.
I wish I'd heard the Peel Session at the time. It's a brilliant track, but it also has what I think is uniquely-rare audio of a Boards of Canada interview, which can be heard via that link thanks to, once again, Boc Pages. (Scroll down to the interview section.)
It was included on the 2019 reissue, though, so you can hear it in its unusually-fast and yet psychedelic glory.