The largest of the string instruments. It is preferably played standing up and serves as an accompaniment and rhythm instrument. Even with this instrument, the close relationship to the other string instruments can be recognized at first glance. The characteristic F-soundhole and the snail at the upper end of the neck are also present in the traditional double bass. In classical music the double bass accompanies the entire sound with deep and warm basses, both bowed and plucked. In many chansons, or traditional styles the bass with its deep and assertive tone is used as a rhythm instrument. In modern music, the double bass is probably the most represented of all string instruments. It appears in rockabilly, jazz, latino and many other musical styles. It can be equipped with 4 or 5 strings and is tuned differently to the other string instruments in fourths (E/A/D/G). The bow of the double bass is also much larger than that of the other string instruments, but it is not necessary in all styles.