Violin

   The violin is a string instrument, usually with four strings tuned in perfect fifths. It is the smallest, highest-pitched member of the violin family of string instruments, which also includes the viola and cello. The word violin comes from the Medieval Latin word vitula, meaning stringed instrument, this word is also believed to be the source of the Germanic "fiddle".Someone who plays the violin is called a violinist or a fiddler. The violinist produces sound by drawing a bow across one or more strings, by plucking the strings, or by a variety of other techniques.

   The first time I saw the double bass/cello, it looks like the larger type of the violin, because there appearance is similar and the way how it is being  played is also the same. It differs in creating a sound, the violin gives out a high pitch despite of its size while the double bass possesses a low pitch. Both instrument is hard to play for an amateur but if a person is willing to learn, then there is a big possibility that he will know how to play it.