[state]

What I really want is a Dropbox for all that structured data. I understand I can't really 'capture' Spotify, but I want some where I can actually put this stuff to work. IFTTT soft of captures this sentiment, but it's not nearly as powerful as the filesystem. It's like pipes with out a hard drive.

It's interesting to consider whether you could apply part of the Dropbox approach to streams of data. Having them singularly controlled by the service you get them from strikes me as sort of limiting and underpowered. But hey, I'm in the minority. I like building stuff and feeling in control of the content I create — even that which gets created passively or implicitly.