There are quite a lot of really good MB's available. Most users that haven't had a bad experience with a particular brand will be willing to give that brand a good wrap. I've found over the years that staying away from the cheap end of the scale will give you a good start, and most of the well known brands will get you something that will work just fine for a music PC.
If you needed a gaming PC then that's a totally different kettle of fish and would need a whole new forum to discuss, but a music PC just needs to get the audio in and out cleanly, quickly, quietly and to some extent, coolly.
Spend your money on good quality RAM, HDD's (or SSD's if you wish), a silent GPU, and a good quality, silent PSU.
My personal preferences are Gigabyte and Asus, and after building many hundreds of systems over what feels like just as many years, these brands have stood the test of time.
The Ivy bridge I7 is a great CPU, you won't need the k series unless you need to overclock for some reason other than music production, I have yet to build a Haswell system so I can't offer any thoughts on that setup.
Good luck and good music making.