************PLEASE USE THE SCHEME(RACKET) LANGUAGE. DO NOT USE JAVA!!!******

6. Design and implement a SCHEME object that represents a music library. Your music library should be able to store music track objects. You should be able to create a library by evaluating the make-music-library function which takes no parameters. Therefore, the music library starts with no tracks. Your music library object should expose the following functions add- which takes one parameter, a music track object, and stores it inside the library . find-by-artist which takes one string as a parameter, the artist's name, and returns a list of lists con taining the track title, artist, and album for all music track objects in the library which were recorded by the artist . find-by-title which takes one string as a parameter, the title of the music track(s) you wish to find, and returns a list of lists containing the track title, artist, and album for all music track objects in the library which share that title . find-by-album - which takes one string as a parameter, the title of an album, and returns a list of lists containing the track title, artist, and album for all music track objects in the library which were released as part of that album