The GL model was designed with Nashville Symphony Orchestra and Nashville studio session tuba player Gilbert Long. This is modeled after the LM10 tuba mouthpiece from the LOUD brand with a few subtle differences. One of the biggest changes is the switch to brass from stainless steel that was used by LOUD.

From Gilbert "The mouthpiece is great!"

Gilbert Long joined the Nashville Symphony in 1978. He holds a bachelor's degree in tuba from the University of Louisville. His teachers include, Arnold Jacobs, Abe Torchinsky and Art Hicks. Performed with the Louisville Orchestra, Principal tuba with the Grand Rapids Symphony 1976 – 1978. In addition to his position with the NSO he was a member of the Nashville Contemporary Brass Quintet is founding member of Tri Star Brass an ensemble consisting of three faculty brass quintets MTSU, Belmont and Blair. Also Founding member of Music City Brass Ensemble. He is part owner of Aardworks Publishing Company; a member of the Jack Daniels Silver Cornet Band; and a tuba instructor at Vanderbilt University's Blair School of Music where he plays in the Faculty Brass Quintet. He has also been involved in several summer music festivals including Sewanee Music Festival, Peninsula Music Festival, New Hampshire Music Festival and the Tennessee Governor’s School for the Arts. As an active freelancer and studio musician, he’s recorded for such artists as: Amy Grant, Michael W. Smith, Match Box 20, Joshef (Cat Stevens) and Garth Brooks. Also played for Video Games and Movie Soundtracks. Gil is married to Erin Long who retired from the orchestra in 2014 where she was a violinist with the Nashville Symphony. They have 2 daughters, Hannah and Jessica. His hobbies include golfing, motorcycling and biking.