Trombone
The trombone made its first appearance in the middle of the 15th century. It is a brass instrument with a cup-shaped mouthpiece and a slide that enables the player to shorten or lengthen the tube and hence the notes of a particular harmonic series. The early trombone was known in English as a sackbut. The instrument had ceremonial associations and in the later 18th century was only occasionally used in the orchestra, notably by Mozart in his Masonic opera The Magic Flute (Die Zauberflöte) and in his Requiem Mass. With Beethoven, the trombone becomes an accepted, if not indispensable, part of the orchestra.
For more information about trombones, visit this site: http://en.wikipedia.org/wiki/Tenor_trombone
Trumpet
The trumpet is the highest brass instrument in register. The trumpet goes back to date in the year 1500 B.C. To put a trumpet together, first you have to take out the trumpet, then you have to put the mouthpiece on the trumpet and you're done; it's pretty easy to put together. They're a lot of trumpet players such as, Louis Armstrong, Miles Davis Maurice Andre, Lee Morgan, James Morrison, and many more.
For more information about trumpets, visit this site: http://en.wikipedia.org/wiki/Trumpet
Baritone
Also known as a Euphonium, it is a tenor-voiced brass instrument. Its history goes back to the year 1790 when Chladni made an instrument containing glass rods and different pitches.
For more information about baritones, visit this site: http://en.wikipedia.org/wiki/Euphonium
French Horn
A French horn is a brass instrument that consists of tubing shaped into a coiled form with finger-operated valves to help control the pitch.
For more information about French Horns, visit this site: http://en.wikipedia.org/wiki/French_horn
Tuba
A tuba is the lowest instrument used in a band or orchestra and one of the most recent additions to modern symphony orchestra.
For more information about tubas, visit this site: http://en.wikipedia.org/wiki/Tuba