String Quartet String Quartet - Level 3 - Digital Download SKU: A0.1192611 Composed by Eraldo Di Addario. 20th Century,Chamber,Classical. 50 pages. Eraldo Di Addario #792057. Published by Eraldo Di Addario (A0.1192611). This is my first string quartet. I'm searching musicians to collaborate with. So, if you are interested, buy the score, play and record it and send the wave file to compositoreitaliano@gmail.com. I will try to sell it wherever I can and I will share the earnings with you.In the third movement at the second bar there is a passage very difficult for the rythm. If you don't succeed in playing it adjust it rithmically in the way you better can.