Well, actually it can’t go away if you never had it. Trills are awesome, if you can nail them. Working on trills, that’s something completely different. I believe that this is the most awkward thing I’ve had to work on out of anything else I ever had to do. It makes me feel very inadequate as a pianist, but again, it also presents a fun challenge. i’m looking forward to when I can really nail a long trill and feel a remarkable sense of accomplishment.