Recently I had the opportunity to work with two customers who own very well made contrabass trombones. One was a beautiful Kanstul, and the other was a pristine Jurgen Voigt contrabass trombone. Like saxophones, the trombone comes in many different registers or voices that mirror vocal ranges. The most popular type of trombone is the tenor trombone, but soprano, alto, bass, and contrabass trombones exist and are used professionally. A misunderstood instrument, many are under the false impression that the contrabass trombone is a slide tuba. It is actually just a larger, lower trombone pitched in the key of F instead of the typical key of Bb.