I wear my glasses all the time -- but in community band, I am a 3rd trumpet with 12 or so other trumpets ------ so nobody really cares what I play anyhow!!!!, or if I play!! --------------------- on a few songs, I only play the "in the staff" F, to the chagrin of the other 2 - 3RD trumpets ---------------but at least I tell them ahead of time ---""""I don't particulary like this song, so I am only going to play F's, would you kind chaps play a little louder than usuall for me???""""" ----------------------ps... they always respond after the song --"you weren't kidding were you?"