Kipling was writing in song form; his wife even says that 'Ruddy was singing a new poem this morning '. Settings of course abound but Peter Bellamy perceived an awareness of traditional song / balladry / shanty in Kipling's verse and so set them accordingly,though his more successful settings were entirely his own in the 'traditional idiom'. One or two seem to echo traditional melodies and fit very snugly indeed - try Puck's Song to the Morris tune London Pride (AKA Idbury Hill).