Mint.com, the online financial management tool, has put its numbers together with market researchers NPD Group to analyze music spending. The results: when it comes to consuming recorded music, digital music continues to rise. At the same time, so does Apple’s grip on the music consumption market, a combination that includes proprietary control of a music store, a music player, and the leading mobile device.

A crazy scheme in which you pay a monthly fee and get unlimited music, huh? Imagine that.

Part of what was strange about flat fee advocate Jim Griffin’s new proposal for an ISP monthly fee for music is that subscription-based music lives already, from digital radio to music services. Amidst rumors that Apple might add subscriptions, the Zune, Rhapsody, and Napster all have flat-fee subscriptions right now, thank you very much. (I’m even told there are music players aside from iPod, though I don’t know if I believe this.)

I was a big fan of YottaMusic, a friendly Web front-end that connected to Rhapsody, and mourned its passing at the beginning of this year. But here’s good news: you can restore Yotta’s best feature, which was keeping track of music played in a Web browser for the superb Last.FM music community service.

Rhobbler

Rhapsody is clever enough not only to work in Web browsers on multiple platforms (even Linux), but generates an RSS feed of music you’ve been playing. Rhobbler hooks into that RSS feed and uploads to Last.FM. It’s a kludge, certainly — I’d love to see this built into the Rhapsody interface, along with other improvements. But it works: sign up once, and you’re done.

As some commenters noted in regards to the Griffin story, there’s a lot of music out there to keep track of — and a lot of us are listening to more than ever before. But that’s why it’s so nice to have tools like Last.FM. I also find, curiously, that subscription music for me feels like on-demand radio; instead of reducing how much music I buy outright, I just buy music I’m even more excited about.

If you’re not already a member, be sure to join our CDM group on Last.FM:

CreateDigitalMusic @ Last.FM

… and yes, promoting your own music there is encouraged! (Albums at right represent albums heard last week by CDM members. And, uh, dude … the group is all guys at the moment. I know ladies reading the site, and Last.FM has plenty of women, so join in and share your listening tastes!)

Some time in the last few days, browser-based music tool Yottamusic went kaput. For those of you who never saw it, the site was brilliant. Like the Rhapsody music service, Yottamusic featured all-you-can-listen music for a subscription fee, all playable in a cross-platform browser. (Yes, even Firefox for Linux worked just fine, thanks to a Firefox extension.) Unlike Rhapsody, Yottamusic had an interface that was actually attractive and usable, and synced plays to the music community Last.fm. Social features let you easily discover music via what other Yottamusic listeners liked — not a new idea, but powerful when integrated with a subscription music service. At least Yottamusic died a graceful death: playlists created on the site can be exported as XML and even uploaded to Rhapsody.com. A lot of websites may not go as gently into that good night, or, um, whatever.

Now, some of this makes some sense. Yottamusic itself was a creation of Rhapsody. In fact, the logical next step would be to ditch Rhapsody’s clunky, obnoxious interface with animated album covers and whatnot, and learn from Yottamusic’s cooler social features and sleeker interface. Let’s see, did th– nope. Why kill bad ideas and maintain the good ones when you can do the reverse?

It’s hard not to feel like subscription-based music in general is not long for this world.