I will be arriving in Munich on Easter Saturday and departing early Monday morning. I have a few questions related to this.

1. Will stores be open on Saturday?
2. Other than churches, what will be open on Sunday? - Museums, restaurants (all or just specific types - will they have special menus - will I need reservations)
3. Speaking of churches, any recommendations - I like good choral singing and organ music, so the more formal, the better.
4. Will trains be running at 4:30 - 5:00 in the morning so I can get to the airport for my flight to Moscow, or will I have to pre-arrange a taxi.

Any other special advice about Easter in Munich will be welcome.

Thanks!