Ideas for visual literacy essay

After hearing we have to write our own literacy essay, I immediately knew what I was going to write about: music.  The only problem is I have so many experiences in a wide variety of focuses that I had no idea what specifically I would be writing about.  Of course hearing that it was a visual essay, definitely trough me off, but I don't see too much trouble in being able to make it visual.  After giving it much thought, I have narrowed it down to 3 possibilities as per the assignment.  I chose my experience learning to play guitar 14 years ago, learning how to record, mix, and master my music, or learning how to march while playing drums in middle school.  I'm not quite sure how I'm going to turn an audio art into a visual presentation and essay, but this should be a very interesting assignment, and am curious as to how this is going to turn out.