The colours are not set in stone either, other than the patterned fabric, which is the actual fabric that I'll be using (though the pattern is slightly smaller than what you see on the example).
The music note on the side will be an extra piece made of foam or some kind of craft material and will hang from two loops, one on the back and one on the front. It will probably hang from a chain, but possibly pearls or beads.
The black part hanging from the waist, over top the pattern fabric, is there to make the dress look better on my body (I don't look good with gathers right at my waist), but if it looks out of place, let me know.
Please ignore the sketchy bust and legs - it's there only to show the size of the skirt.
**Edit: Thanks everyone for your input! It was EXTREMELY helpful!! I've decided what I'm doing and will post pictures so everyone can see the final product!!**