Brass instrument can be very useful for a 1st or 3rd horn player, who uses the F side less. Another approach was the addition of two sets of slides for different parts of the range. Some euphoniums and tubas were built like this, but today, this approach has become highly exotic for all instruments except horns, where it is the norm, usually in a double, sometimes even triple configuration. Some valved brass instruments provide triggers or throws that manually lengthen (or, less commonly, shorten) the main tuning slide, a valve slide, or the main tubing. These mechanisms alter the pitch of notes
Michael Rath Trombones finished at Merton in 1981 and for the next nine years served an apprenticeship with Paxman Musical Instruments, a Covent Garden-based manufacturer of (French) horns. Himself a brass player – he began on tuba at age 11 – Rath opened his own brass instrument shop in West Yorkshire, specializing in repairs and customization. His clientele grew to include professional musicians, particularly trombonists, from throughout Europe. In 1995, British jazz trombonist Mark Nightingale asked Rath to create a bespoke instrument. Completed in 1996 after nearly two years of prototyping, this tenor instrument became the first Rath trombone. With tenor trombones in