Dan Brown has spotted, unlike anyone else, that Cecil Sharp House can be abbreviated to Sharp House, and then to S Ho. By inverting the second and third letters, according to the well known Cabbalist/Cathar formula, we arrive at SoH. By diligent use of the Reading Room at the British Library, and Google, it can be discovered that SoH stands for: Show of Hands! Is it becoming a little clearer now?