A short video about why you should warm your chromatic harmonica. Popping & Sticking Valves <https://www.youtube.com/watch?v=hmwasyBfzVE> *Greg Jones* *Seydel Sales & Service* Web Site <http://1623customharmonicas.com> Repairs <https://www.1623customharmonicas.com/seydel-diatonic--chromatic-repair>