Drummers: what does this notation symbol mean?

[bbernardini]

In the hi-hat part, there's parenthesis around some of the xs. My educated guess is that it's open hi-hat. Thoughts?

[LifeDuringWartime]

1. IANAD

(i am not a drummer)

but from my experience in listening to drummers/directors in jazz ensembles, +/- over the note denotes open/closed, does it not?

are the notes tied over? it might mean to hold it out for that value, but not strike it.

[slutticus]

2. I've never seen this before.

Maybe if I saw it in context.

Can you paste a sample?

[CBGLuthier]

3. ghost note.

A very light note, popular in jazz.