iSongify Files

• App.java
• Backend.java
• BackendDeveloperTests.java
• BackendInterface.java
• BackendPlaceholder.java
• Frontend.java
• FrontendDeveloperTests.java
• FrontendInterface.java
• FrontendPlaceholder.java
• ISCPlaceholder.java
• IterableSortedCollection.java
• Song.java
• SongInterface.java
• SortedCollectionInterface.java
• TextUITester.java