Don't know about other vocabulary but I know the types...

Then there is the beginner or nervous player who attempts to start a tune but are playing it so badly that everyone else in the room are playing "guess the tune" until someone realises that te jumble is say "The Lark In The Morning". I always feel sorry for the person who is struggling like this but until you can work out what the tune is, there is nothing you can do to help. Once a stronger player does join and others join, the beginner usualy plays along quite happily and often looks relieved that their ordeal is over.

Then there are idiots like me who are quite capable of running into a tune I don't play - I get so far and then get stuck. Usually, it is not a disaster as others keep on going but I have been caught out a few times when the others have been as uncertain of the tune as I am and the whole thing comes to a grinding halt.

Jon