What is a trill?

[Bachvein]

I know what a trill is, on guitar it would be like a constant hammer on - pull off sequence. But in this song:

http://conquest.imslp.info/files/imglnk ... ivaldi.pdf

the violino principale performs a trill on the same note Bb. Is that possible on guitar? Or is only possible on a violin due to the vibrato or something?
Even so, I'd like to know how to perform a trill on one note (or what it means)
Thankyyou

[pjones235]

I think it's just like any other trill. In these trills, you'd go from B-flat to C. Is that what you're looking for?

[Bachvein]

I think it's just like any other trill. In these trills, you'd go from B-flat to C. Is that what you're looking for?

yes, ok you're right
Thank you. It was quite easy to find out I should have checked xD

[pjones235]

No problem. I've heard the piece before, so it wasn't all that hard to figure out!

[Bachvein]

No problem. I've heard the piece before, so it wasn't all that hard to figure out!

you dont happen to know what the name of this piece is? and the author?

http://www.youtube.com/watch?v=dz1SVb-xmkM

[pjones235]

Hmmmm.. can't say that I do.