The Violin I plays the Soprano parts, the Violin II plays the Alto parts, the Viola plays the Tenor parts, and the Cello plays the Bass parts. The two most important parts of a string quartet are the Violin I and Cello. The Violin I and the Cello the melody plays the counterpoint, while the Violin II and Viola parts are filler parts that are there to make the piece sound nicer.
he painted it in 1517. it is one of the most valuable painting in the world and it is known as an Italian masterpiece. her real name was Lisa Gherardini. I just put the same thing down :P