Love, death, survival, creativity – at times they all seem impossible or insurmountable. After a seemingly inconceivable recent world history, it’s time to play with the idea of impossible in song, and work out what really is from what isn’t. Is it all down to perception?
Read morePlaylists: songs influenced by reggae, ska and rocksteady
Who are the Mighty Two, and why are they in a tardis? Inspired by last week's nominations, guest playlist writer Uncleben takes us on fantastically influential musically journey through space and time
Read moreSecond nature: songs about travelling in time
This week it's time to set the musical controls - to suggest songs that about time travel in the sci-fi sense, but also those that might move to another period in past or future in metaphor, memory and the imagination
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