The cello is the second largest member of the stringed instruments. It is played in an upright position with the left thumb resting on the back of the neck and the left hand fingers holding down the strings to produce different notes. To produce sound, the right hand either plucks the strings or holds the bow. The cellist sits with the body of the instrument making contact between both knees and the chest. Although it has the same strings as the viola, the cello is tuned an octave lower and primarily uses the bass clef. The cello sounds beautiful playing both high notes and low notes. In fact, the entire range of men's and women's voices can be played on the cello. A good cellist will always be a very valuable member of the orchestra since the number of cellists is typically smaller than the number of violinists.