I can totally relate. I used to read a lot, novels or fanfiction, anything, but when I started to seriously write (fanfiction) the lure of fanfic kind of dwindled. I don't know what brought this on, but perhaps it's because I started to get eye problems and couldn't read on the screen for long stretches... Or perhaps I just didn't want to write the same things as everyone else... No idea!
I think there's always a little bit of frustration when you like an author who writes two or more series simultaneously. For example I like Julie Garwood's contemporary FBI series (which isn't a fan favourite as far as I know) and it's been put on hold recently so she can continue her historical series, which bores me to tears. This isn't to say that I hate historicals, because that's absolutely not true, but every author has their forte and for me historical isn't Garwood's. But hey, I'm in the minority so why complain and have hordes of haters?
I actually used to read in the noisy cafeteria in high school right at the peak of lunch time. Now I "need" (well, more like I work better with) music in order to organise my brain. It motivates me, yet the words don't distract me. I can't really explain it, but even when I read, having music will make the experience more immersive. Go figure.
As for a soundtrack to a book... I'm a writer myself (er, unpublished as of yet) and I do use music to help me focus on certain moods or central themes, or to discover a character's drive. Music will surreptitiously nudge me towards writing something in the story or about its people that I might not have thought of before.
I read all the time, and anthologies help me discover new authors I can check out later. I understand the strain of writing much shorter stories, but I think stretching (or should I say bunching?) your writing muscles that way helps you set your stage in a much more succinct way. Some authors tend to get comfortable with the longer novels, forgetting that there indeed has to be a gripping conflict that, yes, grips the reader so they don't start reading diagonally to avoid the schmaltz...