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 British prime minister can be heard humming a couple of notes to himself as he walks back to Number 10 after confirming he will resign on Wednesday 
 
 David Cameron hums a merry tune as he hands over to Theresa May 
 
 
 
 British prime minister David Cameron was heard humming a tune as he walked back into No 10 on Monday, minutes after announcing that he would resign as prime minister on Wednesday afternoon. @David_Cameron humming a Winnie-the-Pooh style hum as he says goodbye to the cares of office. pic.twitter.com/kcydnLZBg4 — Robert Peston (@Peston) July 11, 2016 
 
 And this is roughly what we think he was humming: 
 
 Understandably, the media have jumped on this surprising musical act, but we’ve investigated further. Richard W Collins (@richardwcollins) Cameron's humming: ClassicFM pronounces it to be "Wagnerian fanfare, Beethoven-esque harmonic doubt and then a... https://t.co/vcLExgr66o 
 
 Some on Twitter saw Cameron’s relaxed demeanour as a sign he was pleased to be leaving Downing Street amid the chaos of the Brexit vote aftermath.
– They're calling it "Cameron's Lament"—though some say it was actually a happy tune from a relieved man. British Prime Minister David Cameron announced on Monday that he will resign on Wednesday afternoon, and a hot mic caught him singing a few notes to himself as he walked the few steps back to his No. 10 Downing Street residence after speaking to the press, CNN reports. He can be heard saying "Right" as he steps inside and removes the microphone. Some have said the tune sounded like the start of the West Wing theme, while others believe it sounded more like a Winnie the Pooh-style song, the Guardian reports. After a detailed musical analysis, Classic FM concluded that Cameron's musical notes suggested "Wagnerian fanfare, Beethoven-esque harmonic doubt, and then a strange contemporary flourish at the end," a composition that might demonstrate the "unresolved nature of Cameron's swift departure from office." The prime minister is expected to offer his resignation to the queen on Wednesday. He will be replaced by Theresa May, who prevailed in the Conservative Party's post-Brexit leadership race after all of her opponents dropped out. (Some ill-judged comments about motherhood may have hastened the departure of May's last remaining rival.)