| Liad,
I would say that one has to do with the quality of the attack ^. I think that's a pretty percusive attack. The other has to do with length \/. Many composers use that and if you look at the last movement of Pulcinella you'll note the the first set of high C's have this > and the end has this \/.
The dash/dot marking is like lifting the bow between several notes. A longish note, to be sure, but with a quick lift.
ML |