...Hm. Okay, I just looked it up in their FAQ,
Q: How do I submit my music (or my band's music) to be considered for inclusion on Pandora?
Thanks for thinking of Pandora!
This is now the only process for submitting your music (or your band's music) to Pandora.
1) a CD of your music
2) a unique UPC code for that CD
3) this CD to be available through Amazon as a physical CD (and not just MP3s for download)
4) the legal rights to your music
5) a standard free Pandora account, based on a valid email address, that will be associated with this submission
6) MP3 files for two of the songs from your CD
Once you have all of these items ready to go, you can submit your music to Pandora here:http://submitmusic.pandora.com/
Notes on Step 2): To obtain your own UPC code at a low cost, click here. If you already have a UPC code through your record label, just use that one.
Notes on Step 3): To make your CD available on Amazon (after you have a UPC code), you can sign up for the low-cost Amazon Advantage program (click here).
IMPORTANT NOTE: Make sure you are listed as the "Artist" (not "Performer" or any other field) and that "Tracks" are correct for each track on the CD. If you need assistance correcting your album art or information on Amazon, click here. We cannot emphasize enough how important it is to make sure all information is correct on Amazon before submitting your music to Pandora!
IMPORTANT NOTE: We cannot accept music available only as downloads through the Amazon MP3 store; you must have a physical CD for sale.
Note: If your CD is being physically sold through CDBaby, and you checked "sell through Amazon," you may need to request that CDBaby manually correct the meta-data, including track listing, that is delivered to Amazon for your album before you can submit to Pandora.
Note: If your CD is being physically sold through TuneCore, it may be 1-2 weeks for the meta-data, such as track listing, to be completed on the Amazon side. Once you see track listings appear for your physical CD in TuneCore, you're ready to submit to Pandora.
Note: If your CD is being physically sold through Amazon's CreateSpace program (also known as "CD on Demand"), you should be able to submit to Pandora. Again, make sure you are listed as the "Artist" (not "Performer") and that "Tracks" are correct for each track on the CD.
The Pandora Indie Submission process starts when we verify the UPC code for your CD through Amazon. Then you'll be prompted to upload your MP3 tracks to Pandora for consideration, and we will review the music you've submitted for possible inclusion.
Please don't write to check up on your submission, as that will just take away time we could be using to work on listening to submissions! An updated status message for your submission can always be viewed here:http://submitmusic.pandora.com/submit/status
You'll need to sign in with the same Pandora account that you used to submit your music in order to see your submission status.
If the decision is made to include your music in Pandora's Music Genome Project, then we'll get in touch to ask you to send the CD to us, along with a form legally authorizing Pandora to play the music on your CD. Please don't send us your CD until you hear back from us!
Thanks again for your interest in having your music on Pandora!
Picky little buggers, aren't they.