I very recently made a music logo, but for a different purpose (business, website and app). I think I can add some things I picked up during the whole process. I went through maybe 20 iterations, and the last iteration included rebuilding it and incorporating the Golden Ratio into it as much as I could, it actually pulled off the effect I was imagining much better than trying to draw it randomly. Unfortunately I can't show you that logo right now, it's top secret :P.
Anyway, I agree with everything Brendan has said, and I'd like to reiterate what he said: including your full name will be much more effective.
Having a symbol as a secondary brand asset is also handy, but you will almost always want it to be accompanied by your name - to make certain that people know what you can do, and tell it to others.
So my first conclusion is straightforward; use a logo that includes your full name for everything except those rad stickers that you put on your speakers; those can be the secondary asset only if you really want it somewhere. :)
On the same note, the name must always draw the main focus, so don't have a big symbol floating over tiny type! (I know you didn't, it's just a gentle reminder not to as you continue).
Now, on the secondary asset, I like the squiggly line sound wave, it's within the vicinity of what I settled on for my logo. Because of this, I'm going to see if I can apply the Golden Ratio to it the same way I did with mine.
Result of my first and only attempt, a sound wave that increases by roughly Golden Proportions, personally I think it makes for a much more interesting shape:
I had to replace that 'R', as it really bugs me. I just copy and pasted the 'P' over it.
The shape can be executed much better, but I was trying to do it quickly not perfectly. I honestly think that using the Golden Ratio on an otherwise fairly standard shape can really give it some interest.
So in conclusion, I advise you to create a full name logo for primary use, and then work more on the sound wave concept for a secondary asset. Think about or instruct a designer to think about incorporating the golden ratio, and geometric inspirations.
Even something this simple can be incredibly complex to create. Anyway, for your reference if you want to take this further, it should give you a general idea of the approach for creating this shape, I did some of the maths but it should be worked out completely mathematically for the best finish:
I hope I've helped you to find some direction, and you achieve what you're after.