Firstly, from the "Wand'ring Minstrel" number near the beginning of Act 1, a tricky little semiquaver passage.
The other passage is from the Finale to Act 1. It's quite exposed, and it is in unison with the rest of the strings, which may (or may not) make it easier.
That's it in terms of tricky note passages. The rest of the problems are caused by the times being pulled around, but, as the notes themselves aren't so bad, it's easy enough to keep watching the conductor!
One performance down, eight to go.
