Talking of authentic recordings, here’s the classic 1932 version of Pique-nique by Edouard Ibert (“Call me Ted”) (cf. Authorship):

With the wonderful plummy voice, and great original, period instrumentation—menacing brass and xylophone, and zany woodblocks, like Cantonese jazz, I may be drawn to it by its heavy use of the pentatonic scale, but to anyone the final chorus is a definitive proclamation of those sober values that Made the British Empire “Great”, after the sinister bacchanalian debauchery of the sylvan outing…

Cf. the reflections of Alan Bennett. And the pique-nique may remind us of Five go mad in Dorset, with lashings of ginger beer…