i) Please read this: Organum

ii) According to the latest Private Eye the BBC4 series Sacred Music was scuppered by a complete lack of budget, reducing it to four parts from the intended eight, and having The Sixteen singing in (say) 'A Lutheran-style Church in London' rather than on location in the church where the music was actually written, as was the intention. Not so in the case of Rome, where the Vatican has black-listed the BBC because it's covered Priestly Sex-Scandals with Unnecessary Vigour.