Reply #10: I remember once on the radio

[tjwmason]

it was a "my favourite pieces of music" show, the person chose a hymn and they duly played a perfect choir recording of it. Afterwards in a subtle dig he said "of course hymns only sound good when there's a full congregation of people who can't really sing properly there with the choir".

Veni Veni Emmanuel taken slowly though would be painful - the music though not Gregorian chant is plainchant and needs to flow gently.