Jools Holland’s Hootenanny has become the traditional way to end the year, a guarantee of some good music to make any knees up go with a end of year bang. And even if your party consists of you and the wife/hubby due to being a parent, and if your New Year’s outfit is actually your pyjamas, when George McCrae is ringing in the new year singing ‘Rock your baby’ all is right with the world. You have the best disco in the world right there in your living room and all you need to is continue into the night playing your retro cheap vinyl (not Cds and definitely not an…