"Patrick Stewart sang “The Hills are Alive” from the Sound of Music to lighten the mood during Tasha Yar’s funeral scene in “Skin of Evil”"
...umm...wha? the thought process here was:
1. hey all these actors seem sad during a funeral scene.
2. they need cheering up.
3. I'll sing.
4. I'll sing something from the Sound of Music.
...bit worried about Mr Stewart...