The Guardian Unlimited has posted a piece about NASA intending to beam a Beatles song into space next week.  The song is ‘Across the Universe’ and is 40 years old.  The Guardian asked for alternatives that might have been more apt, instructive or just fun.  Suggestions included  the title of this post by The Carpenters, Starman by David Bowie , The Planets Suite (though someone thought that too parochial!), Beathoven’s Ode to Joy, or even Britney’s Toxic (played at the end of the Earth – that’s for the Dr Who fans;-).  My favourite suggestion would be Spem in Allium by Thomas Tallis – quite an astonishingly complex piece of choral music.  It was written in the 16th century and has 40 different vocal parts.  Go on give it a listen here.