Which ended up working, but I didn't realize that plotcontent functions similarly to Return. Thank you for passing along the information. I tried this and it also worked.
Use Which.
Which
http://reference.wolfram.com/language/ref/Which.html
This helped. Thanks!
Thank you for responding. I'm still having not having success with the function, but it's great to have that syntax tip.
Can you show me one or two example uses of your eighthnote[], what your output is, what the output should be and perhaps why?