Sistrum, too. What's more, just because he recorded it in his helmet doesn't require that it be music he can use. He might keep as a memento something a friend of his sang. (This could serve as a narrative flourish, when in another situation someone thinks a certain song, judging by its title, could be useful, and Doug has to explain that no, this particular music is either all instrumental or all vocal, and he only preserves it because it was his dear friend's favorite tune.)
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Considering that one dictionary definition of "carry on" is to "behave or speak in a foolish, excited, or improper manner," the designers of that famous poster, "Keep Calm and Carry On," need to make up their flippin' minds!
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Considering that one dictionary definition of "carry on" is to "behave or speak in a foolish, excited, or improper manner," the designers of that famous poster, "Keep Calm and Carry On," need to make up their flippin' minds!