The Trombone is a development of the Trumpet from the 15th-century. Previously known as the Sackbut, the Trombone has stayed relatively the same since. The most common form of the Trombone used is the Tenor Trombone. The Trombone has always used an adjustable slide that allows it to change pitch. This slide has made it so that it is fully chromatic, and has been since its invention. Beginner Trombones only have a slide, while some advanced and most professional horn have an F-attachment (or trigger), which adds length to the instrument to lower the pitch from Bb to F.
While the Trombone is pitched in Bb, it reads music in concert pitch. This means it is a non-transposing instrument.
Trombone, like all the other brass instruments, is playing by buzzing lips through the mouthpiece. To put together, place the bell section of the instrument and the slide at a 90 degree angle, then screw the sections on together. It is held with the left hand. Make an L shape with index and thumb, put your thumb behind the closest brace to the bell, index finger on lead pipe right past the mouthpiece, and use other fingers to grip the first brace on the slide. This hand is used to support the instrument (yes, the horn can rest on your shoulder a bit) while the right moves the slide. Use just your thumb and index (middle finger works fine too) to grip the brace attached to the slide and move it while keeping a loose wrist.
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Jay Friedman is the current Principal Trombonist of the Chicago Symphony Orchestra. He attended Yale University on scholarship and later majored in Music Composition at Roosevelt University in Chicago. He spends lots of time traveling to teach masterclasses at various universities and currently is the Professor of Trombone at Roosevelt University. Jay Friedman is also an active and prolific conductor who's articles on conducting are widely adapted for study at universities.
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