The following text was written to the standard output stream when the BasicsListener.java program was executed from IntelliJ.
/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -javaagent:/opt/intellij-idea-community/lib/idea_rt.jar=37537:/opt/intellij-idea-community/bin -Dfile.encoding=UTF-8 -classpath /home/murman/IdeaProjects/CS1/out/production/CS1:/home/murman/Downloads/SimplePainter.jar:/home/murman/Downloads/SimpleComposer.jar:/home/murman/Downloads/jfugue-4.0.3-with-musicxml.jar mmw.BasicsListener c.mms1 ... (C,4) c.mms2 ... c.mms3 ... c.mms4 ... c.mms5 ... c.mms6 ... c.mms7 ... c.mms8 ... Process finished with exit code 0