Clients & Testimonials

Randy has developed long-term relationships with key musicians in major symphonies, ensembles and bands in the Northwest region. They have depended on his unique skills and proficiency to customize and maintain their instruments for their particular needs.

Key Clients

Jeff Work
Current Principal Trumpet, Oregon Symphony

Fred Sautter
Former Principal Trumpet, Oregon Symphony

Peter Ellefson
Current trombone section, Chicago Symphony

Charlie Reneau
Bass Trombone, Oregon Symphony

Ja’Tik Clark
Tuba, Oregon Symphony

Aaron Levere
Principal Trombone, Oregon Symphony

Larry Johnson
Former French Horn, Oregon Symphony, Professor at Oregon State University

Mike Hankins
Principal Trumpet, Porltand Columbia Symphony Orchestra

Henry Hennigger
Trombone Professor, Oregon State

Richard Cooper
Former Lead Trumpet, Buddy Rich Band, Woody Herman, Stan Kenton

James Smock
Eugene Symphony, Columbia Symphony, Trumpet Instructor at Clark College

Stan Bock
Trombonist, Clinician, Low Brass Performance, Origin Arts Recording


Randy, to put it plainly, is a very amiable gent who does really terrific work!  He cares about the details, and he’s good at the details. He’s also sensitive to the needs of professionals and students alike. When something goes wrong and an important performance is looming – whether it’s custom modifications or fixing a boo-boo – Randy’s the go-to guy when you need things done right the first time!

– Jeff Work, Principal Trumpet, Oregon Symphony

Randy Mueller offers a level of expertise and experience in instrument repair and fabrication second to none. From London, Zurich, to Paris, it has been my pleasure to hear trombone players testing Randy’s finely crafted components and to hear them speaking frankly about his consistent and remarkable results. Attention to fine detail has become a hallmark of his work.

– Patrick Spurling, PL Spurling, Inc., Zurich

Personally, I have played with Randy hundreds of times and have never let anyone else touch my horns. He has done everything under the sun for me from building me a C trumpet to tweaking my horn on the bandstand. I’ve seen him take trashed horns and turn them into great playing instruments and take great horns and turn them into gems. His attention to detail is unmatched. He always makes time to find out what you are looking for in your instrument and finds a way to make it happen.

– Mike Hankins, Principal, Portland Columbia Symphony Orchestra

I like to think of Randy as my luthier. Of course, luthiers build violins not trumpets; but the level of artistry Randy brings to the table bespeaks freshly varnished Stradivari hanging to dry like so many laundered shirts. He’s really that good.

– James Smock, Trumpet Instructor, Clark College

Randy is the only repairman that touches my horns. He’s a magician when it comes to slide repair. He did a fantastic job on the conversion of my vintage ’67 Conn 88H. I’ve played Conn’s factory open-wrap design and I prefer Randy’s design. No more “stuffy” trigger notes!

– Stan Bock, Trombonist, Clinician, Low Brass Performance, Origin Arts Recording

Below as featured on the Trumpet Herald:

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