Design, Rebuilds, and Diagnostic Alchemy

Horn Forensics
Close-up of a shiny brass French horn on a reflective surface against a black background, resembling part of a musical instrument or decorative item.

After 35 years playing French horn in the San Francisco Symphony, Bruce Roberts has spent the years since at the shop bench trying to address common causes of frustration with the instrument.

A major factor in horn players’ attrition is the mismatching of players and their equipment. Horn Forensics exists to address that, through original horn designs, careful repairs and modifications, and teaching players who want to understand both.

Offerings

A shiny brass French horn resting on a dark green patterned surface, with its bell and intricate tubing visible.

French Horn Building

Bruce Roberts has studied with master horn makers around the world, including Keith Berg and George McCracken. He has built traditional horns as well as horns in non-traditional wraps.

Bruce Roberts working on a French horn, in a workshop with tools and equipment in the background.

French Horn Repairs

Bruce offers a unique repair experience that upholds Horn Forensics' mission to share experiences and knowledge and to make the horn easier to play.

Bruce Roberts holding a French horn and talking to someone in front of the camera in a cozy room with a window and orchids

Consultation

Bruce offers in-person consultations in his workshop north of San Francisco, and virtual consultations via Zoom to anywhere in the world.

THE FOUNDER

About Bruce Roberts

Born into a musical family, Bruce started playing the cornet at age five. He switched to horn at age twelve at his father’s insistence that the horn was “a nobler instrument.” 

Bruce attended Cal State Northridge where he studied with Fred Fox. After five years and with no degree in sight, he decided to attend Cal Arts where he studied with Ralph Pyle. There he met flutist Jody Meese, who eventually became his wife.

At the end of his first year at Cal Arts he got his first orchestral job playing in Mexico City. Fortunately, so did Jody, and off they went to Mexico where Jody played in the National Opera and Ballet Orchestra and Bruce played in the Mexico City Philharmonic. 

In 1981, after three years in Mexico, Bruce and Jody moved to Salt Lake City where Bruce played in the Utah Symphony. They stayed there for seven years and had their first child, Laurel, in 1986. 

At the 1987 Horn Symposium hosted by BYU in Provo, Utah, Bruce met Dave Krehbiel, then-principal horn of the San Francisco Symphony. Dave encouraged Bruce to audition for a horn vacancy in San Francisco. After winning that audition, the family moved north of San Francisco where they had their second child, Mason, in 1989.

During his time in the San Francisco Symphony, Bruce played every position in the section, but spent the bulk of his time playing Third Horn and Associate Principal. He has done extensive recording work at Skywalker Studios and he is a founding member of the Bay Brass.

His interest in horn design and building has been a long simmering passion that wasn’t explored until his children were grown and he finally had the time to pursue it. He has worked with Keith Berg and George McCracken to gain shop skills and share ideas on all things horn. 

Bruce collaborates with German valve and bell makers to produce the parts that are needed for his new designs. He has developed two new horns that can be viewed on his blog.

Horn Forensics is the result of Bruce’s desire to give back to others what he has learned over many years of playing horn and experimenting with design ideas. It is priceless to see players' faces light up when they realize their upgraded equipment is going to make their musical life so much easier.

When not designing and repairing horns, Bruce enjoys hiking, camping, cooking, cheering on the Giants and the Warriors, doing Sudoku, and playing with his granddaughter.

Bruce Roberts, hornmaker, sitting on a chair, holding a French horn, and engaging with a young child who is standing barefooted on tiled floor. They are facing each other, and the man appears to be explaining something about the French honr
A watercolor depiction of Bruce Roberts holding a French horn
An antique black and white photo of a young boy sitting on a chair with a little French horn resting on his lap, wearing striped socks and shoes, and holding the mouthpiece to his lips.

Bruce Roberts is a horn designer and builder in California's Bay Area. He is a retired San Francisco Symphony French horn player.

The Horn Forensics Mission

To share experiences and knowledge

To offer insights and options to musicians of all ability levels

To advance the art of horn manufacturing and design

To explore theories and experiment with an open mind

To ease the discomfort and anxiety of playing the horn

  • "Bruce [was] the SF Symphony horn section's go-to guy for horn repair. I can't tell you the number of times someone had a last minute problem and Bruce made it possible for the show to go on. He has also overhauled an old C.F. Schmidt of mine and put a new pipe of his design on it, making it possible for the horn to be played again after 25 years. Bruce is working on creative new designs for horns, trying to think outside the box and create horns that are different from some of the traditional models we have become used to. He has also made a very nice instrument in the classic Geyer mold for a former student. Whether you are interested in repair or a new instrument, give him a call."

    — Robert Ward, Principal Horn of the San Francisco Symphony

  • "On my Schmidt, [Bruce's BR-2 leadpipe] offers a comfortable focus and resistance above the staff without stuffiness in the low range. Clarity of articulation is easily achieved at all dynamics and in all registers. It changes color very evenly, developing brightness and presence at lower dynamics while still offering an incredibly powerful and broad fortissimo."

    — Darby Hinshaw, San Diego Symphony

  • "Several years ago, I bought a 1920’s-era Geyer that sounded great but had had some shoddy repair work done that caused the F and Bb sides of the horn to be out of tune with each other. Bruce shortened the F side, made some new slide tubes and repaired a few braces. That Geyer is now the best horn I own and is the instrument I use regularly in the San Francisco Symphony. He has worked on several of my other horns as well. I trust Bruce to do any repair work needed on my instruments. His new horn designs also look very promising!"

    — Jonathan Ring, San Francisco Symphony