The Threshold HouseBoys Choir was a musical guise for Peter Christopherson, announced in 2005 as a follow up endeavor to his former group Coil. Despite the misleading name, it was a solo project which relied heavily on computer generated vocals, of which he was formally credited as the 'director'. The name was derived from a play on words, combining the phrases 'house of boys', 'boys' choir', and 'Threshold House', the latter being the name of Coil's former headquarters, and official website.