I have several Blues Harps and find that when I don't play them regularly, the reeds seem to get stopped up. Is that normal? Is there anything I can do to keep that from happening? or to "fix it" when it happens? Also, what is a chromatic harp and it's advantages? O.K. that's 4 questions, if you're counting. I've been rehearsing for a St. Patricks day musical program and I don't want to have a problem when it's time to play. Can anyone help? (that's 5)Zorro