How Much Organ Music Do You Play For Weddings?

This Saturday my friend Gediminas asked me to play for his wedding at St John's church (I don't usually do this because they have their own wedding organist there).

It will be a special setting: the liturgy will take place in one of the chapels but the organ will sound from the nave.

This morning my friend came over to the organ balcony to discuss the order of organ music.

Because the ceremony will be in a different room than the organist, I will not have the opportunity to sing Veni Creator hymn and the psalm.

Here's what I will play (it will be all improvisations - my friend didn't want any of the Mendelssohn's or Wagner's favorites):

1. The Prelude while people are gathering (2-3 minutes)
2. Interlude 1 before the opening prayer (2-3 minutes)
3. Interlude 2 after the 1st reading (2-3 minutes)
4. Interlude 3 after the 2nd reading (2-3 minutes)
5. The Postlude at the end

I'm curious how much organ music do you guys usually play for weddings?

PS Here's what I improvised for Gediminas this morning before he left. And here's another improvisation when we first met a few weeks ago (snippets of Mendelssohn March sound here).