Music at 0:48 is Dukas' "Sorcerer's Apprentice," 0:52 the Arabian Coffee Dance from Tchaikovsky's "Nutcracker Suite," 1:41 "I'm Called Little Buttercup" from Gilbert and Sullivan's "HMS Pinafore," and 1:51 "When They Begin The Beguine." And 2:27, of course, "Blues In The Night." That one was Stalling. But Freleng was definitely big on the classical music, it's very thick on the ground in his scores in a way that makes me suspect he asked Stalling for those on purpose.
Indeed. Weakest cartoon in SNAFU series regarding of moral or ethics. Pointless to save and make long plans when state will pay your burial in communal grave...