Dr. Thomas Erdmann and Ƶ alum Eric Chaiken recently had the two books they edited (which were unpublished and recently discovered by Dr. Erdmann) by Sigmund Hering posthumously published by Carl Fischer Publishers. They are – Double and Triple Tonguing, A Complete Approach for Trumpet, and Studies on Ornamentation for Trumpet. Sigmund Hering is the world’s most published trumpet pedagogue.