A long, wonderfully relaxing, floaty tune by Orbital. The origins of this song are well known. It is a reference to the of P & P Hartnoll's mother's dependednce on the prescription tranquiliser Halcion. This drug was withdrawn from the market when it's long-term effects became clearer:
a "rather crazy adolescence", not helped by their mother being on the (later withdrawn) prescription tranquilizer Halcion (hence the song of the same name)

"Halcyon + On + On" was in fact a response to the drug used for seven years by the Hartnolls' own mother

Live, Orbital used to drop in cheesy 80s rock-lite tunes, such as Belinda Carlisle's "Heaven is a Place on Earth", or Bon Jovi's "Livin' on a Prayer", before dropping the beats back in, and getting funky again

Actually, the bits thrown into the live version of this track always (well, in all the live versions that I have heared), come from two specific cheesy tunes: Belinda Carlisle's Heaven is a Place on Earth, and Bon Jovi's You give love a bad name. The cool thing is that they play them over each other and still keep it in time and sounding melodic.

The live Orbital gig that I saw in 2000 was outstanding, and when I realised that they were about to break into Shot to heart, and you're to blame, darling you give luurve/ooh baby do you know what that's worth/ shot to the heart/ ooh heaven is a place on earth/ and you're to blame ... well, I jumped for joy.