Trombone
The tenor trombone is the most popular trombone type in use today, and is usually what people mean when they say "trombone". It is usually the first instrument a new trombonist will play. It has a slide that is used to change notes and make music. People who play the tenor trombone usually play from bass clef but some very good players can play from treble clef. Better and more expensive tenor trombones have an F attachment.