Project: music-organizer-v4. A project to collect audio files. Authors: David J. Barnes and Michael Kölling This project is part of the material for the book Objects First with Java - A Practical Introduction using BlueJ Sixth edition David J. Barnes and Michael Kölling Pearson Education, 2016 It is discussed in chapter 4. To start: Create a MusicOrganizer object on the object bench. Use its methods to add, remove, and play files. The listMatching method prints all files matching a given string the collection. The findFirst method finds the index of a file that matches a search string.