Oh! My Son! My Son!

          sketch2.midi           sketch2.pdf           sketch2-sheet.pdf
              Refer files;    sketch2.ly     sketch2-sheet.latex     run--multiple.cmd      run--multiple.sh
              Actual files Download; sketch2.tar.gz ( About; 28,650bytes )
       Windows (cmd)>run--multiple sketch2[Enter]      Linux (bash)$ ./run--multiple.sh sketch2[Enter]

This sounds "sketch2.mp3".