There's a line in the song DOWN AT THE OLD BULL AND BUSH that goes "Hear the little German band" (which might or might not be followed by a "tra-la-la" line) which has always sounded out of place to me, making me wonder if it was a quote from another song.

Why would a German band be performing at the Bull and Bush? I'm guessing that the line was not meant to be taken literally. You wouldn't hear a German band at the Bull and Bush, but rather, you would hear people singing a song called "Hear the Little German Band." Makes more sense, doesn't it?

So my question is, is this the song they were alluding to?