Okay, I'm now raiding Wellinghall's military histories. Apparently the US army decided the best solution to the "eating too much of the rations" problem was to give the host families at Christmas a package containing "fruit or tomato juice, evaporated milk, peas, bacon, sugar, coffee, lard or shortening, butter, rice or available substitutes". When word got out, the number of invitations shot up - 50 invitations for every GI available at Christmas 1942.

Music - yes. All of the above, radio, gramophones, pianos in many homes and pubs.