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
Harlequin Brass Ensemble This idea was then further established by PJBE's successor's London Brass. The instrumentation is based on orchestral brass containing four trumpets (including Bb, Piccolo, Eb, D, C and flugelhorn as required), three tenor trombones, a bass trombone, a french horn and a tuba. This allows for a rich variety of sounds and styles, fitting perfectly to anything from Baroque music through to classical music, jazz, 'brass pop' and also moving forward with substantial contemporary works being written specifically for ten piece ensemble. Keiron Anderson became musical director of Harlequin Brass in 1999. Harlequin Brass Ensemble Harlequin Brass Ensemble based in