The intro of a song is all that’s need­ed for spe­cial mem­o­ries to come flood­ing back. Just a bar or two and you find your­self cat­a­pult­ed back to a par­tic­u­lar moment in time: whether fun­ny or joy­ful, roman­tic or melan­cholic, it’s the music that will take you there. Many of us pos­sess some of our favourites as…