Hi, they will be faster in benchmarks but for practical purposes for music files it's hard to see how it would make a difference.
And prices are just going to keep coming down, so if you don't need X GB of SSD storage right now, then it's going to be better cost-wise to wait anyway.
[Edit, I'll disagree with Jason on computer speed, it's not relevant. Neither is RAM, as long as you've got enough, it doesn't matter.]