Update your project ideas (Verplank Diagram, Interface sketch) to reflect your latest idea. Make sure we understand who your design is for, where it is to be used to play music, how you propose to get music to the device, what visual/auditory cues are present to help people understand how to use it and what mode it's in, etc.
Sketch an outline of the major project components (e.g. screen, enclosure, input wheel, speaker, etc.) and features (e.g. waterproofness, light weight, portability)