If you have always found the crazy slide mechanism and deep bass sounds of the trombone alluring, maybe it is time you started learning more about this unique instrument. A trombone sits in a class all by itself. Though it is a brass instrument, it does not follow the usual convention of having valves by which one can make different pitches. Instead, it uses a slide feature that allows a trombonist a great degree of flexibility. While certain instruments can play only very distinct notes, a trombone player can choose to play a note flat or sharp and can even play quarter tones. You can find a regular trombone or a bass trombone for a lower octave on eBay offered from many reliable sellers. Be sure to also pick up the essentials like a trombone mouthpiece, music tuner, and even some trombone grease. Ready to learn a new instrument? The trombone may be right up your alley.