They call this rehearsing, monsieur.
2 seconds sound clip from the Phantom of the Opera (1943) movie soundboard.
You can hear this line at 00:34:29.010 in the Blu-ray version of the movie.
Quote context
[...]
- It's a lullaby of Provence. I've known it all my life.
- Tired from your weary toil, day's work is done.
- Hear them ring while my love and I drift and dream to their lullaby.
- Hear those bells ringing soft and low ringing peace through the twilight glow calling to everyone...
- They call this rehearsing, monsieur.
- I'm sorry to intrude, but I must see you, Christine.
- Well, you see, I'm busy right now...
- Christine! Please remember that you are speaking to a gentleman.
- Anatole, well, he's been helping me.
- Not at all, monsieur. I find it a pleasure.
[...]