During its existence, Trombone scale almost did not undergo radical changes in its design. In XIX century, there were made attempts to adapt to the Trombone scale system of valves such as the mechanism of pipes and horns, but this innovation did not spread from the fact that such instruments, although it won in the technical agility, significantly lost in the sound. In 1839, the Leipzig musical artist Kristan Zatlere invented quartertone, which allowed to lower the sound of a Trombone scale to a quart, which allowed to extract the sounds from the so-called "dead zone" (the segment scale, inaccessible due to design features a Trombone scale).

There is development and strengthening tool positions in the orchestra, solo and ensemble music, there are virtuoso solo artists of high class. Composer creates a number of works for Trombone scale, which subsequently become a classic repertoire - Romance Weber, discovered many years after the death of the composer's Concerto for Trombone scale and Brass Band by Rimsky-Korsakov, David, Concertino, and others. In the second half of the century creates a powerful, compared with the past, factory production tools - Holton, Conn, King - in the U.S., Heckel, Zimmerman, Besson, Courtois - in Europe. They leave from the practice of some types of trombone scales, for example, Viola and Contrabass. At the XX century, thanks to the development of performing schools and improve the production technology tools, Trombone scale became very popular tool. The composer created for his numerous concert literature occupies a significant place in jazz Trombone scale, as well as ska, funk and other genres. Since the late 1980's, there is a revival of interest in the old Trombone scale and obsolete varieties scales.

The principle of sound production As with other brass instruments, the basic principle of playing the Trombone scale are getting Harmonic series by changing the position of the lips and air column length changes in the product attained by means of the wings. When playing rocker nominated right hand, left-supported tool. The Trombone scale there are seven positions (of the scenes), each of which lowers the system tools on a semitone. Each position corresponds to a certain combination of valves in the valve instruments (including the barrier on the Trombone scale). In the first position of rocker is not extended, in the seventh - unveiled at the maximum possible distance.

The table shows the correspondence between the positions of trombone and other brass instrument scales and the use of valves on other brass instruments. The tone - the sound, which is obtained from the fluctuations of total column of air in the instrument. On Trombone scale basic tone can be obtained only on the first three or four positions. It is called the pedal sounds and sounds quietly. Using quartertone Some Trombone scales have added crown, downshift entire scale Trombone scale in a quart down. This crown includes a special lever, so-called quartertone, which is pressed by the tension of the special chain attached to the big toe of his left hand. Trombone scale with quartertone is essentially a combination of tenor and bass instruments and is sometimes called a tenor-bass Trombone scale. When the quartertone Trombone scale gives only six positions, so as an extension of the wings at each subsequent position requires more space because of the increased length of the tube Trombone scale. Glissando Glissando - reception, which link seamlessly moves from one position to another, with the musician does not interrupt the sound. It is used for special sound effects.