Violin Family Number 3. Whether in orchestra, for solo, in the string instrument group, it is one of the most important instruments. It is in the form of a violin, but much larger than it. Height 120 cm. It happens. He is sitting and played between the knees and the tip of the uterus rests on the ground. It corresponds to the bass sound and its note is written to the fa key (bass switch) on line 4. The bow is 2 cm from the violin arc. It is shorter (72-73 cm.), but much more. It gives a very beautiful, lush and dull sound. XVI. As of the second half of the century, the violin model was produced and developed as it is today.