Sheet Music help

Okay so I know some other members here also study music, in some sort of way. But the only problem I ever get when reading sheet music is notes that appear in brackets - or sharp, flat or natural signs appearing in brackets before a note. Now I have no idea what this means, at first I thought it means when you come back repeating the verse again you play the bracket note, but the Harry Potter theme doesn't repeat any bits. Then I thought it means that note is optional, but I don't know. Help Please

I'll be such a fool if it turns out to be something simple that's probably in my music notes. But I'll still ask for help either way and so this section has a post.

..brackets? i don't get what you mean. xD
is it for piano sheet music?

it would be helpful if you posted a little screenie of it. :3

Here, I scanned two examples. And I highlighted the bracket notes in red.

http://www.ichabod1799.net/extra/sheet1.jpg

http://www.ichabod1799.net/extra/sheet2.jpg

My mom's a music guru, I asked her ^^

Those bits are just reminders - and you don't normally see them - see how there's the flat and whatever bits at the beginning of the line? The note before those ones are naturals, so the brackets are just a reminder to go back to the set flat

Hope that helps!

ah yes that does help, thanks Smile