There are certain trombones that are considered convertible between Straight and F-Attachment. (Like the previous poster, I also assume that you want a trigger.) To the best of my knowledge, though, Getzens aren't compatible with a feature like that....
e-mail me at and I'll give you a quote on a similar trombone.
Hey, I play tenor trombone too! Yeah, anyways. Um, my director lent me a couple of these books that have these studies for the trombone. I don't know if they are at the level you would want it though. I'm still in high school and I don't know what le...