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          sketch4b.midi           sketch4b.pdf           // sketch4b-sheet.pdf //
              Refer files;          sketch4b.ly             // sketch4b-sheet.latex     run--multiple.sh //
              Actual files Download; sketch4b.tar.gz ( About; 17,400bytes )    // if Linux (bash)$ ./run--multiple.sh name[Enter](need-TeX and Ghostscript) //
       Normally; [Windows , Linux] lilypond --png --pdf name.ly[Enter]

This sounds "sketch4b.mp3".