Update Mac Music App with content, one small feature

Hi, This project adds new content to our existing app (loops), and a feature to drag-and-export the files as WAVs. The audio files in our app are .CAF files. We need to implement a lightweight converter script which, upon dragging the file outside of the app, will allow a user to drop it into another program like Audacity, Garageband, Logic, or onto their desktop, as a .WAV file at 44khz. Our app is made of lists. When the user hovers over the cell, a text label should appear that says, "Drag-and-drop as WAV". Audio should still continue to play during this process without issue. Thanks -