Take Pandora for example. I came across the following section on their submission FAQ.
To submit music to Pandora, you'll need these items:
1) a CD of your music
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 for consideration here: http://submitmusic.pandora.com/.
Take notice that the only way to get on their playlist is to have a physical CD for sale.It's the same thing if you want your music reviewed. It doesn't matter if it's on a blog or traditional media, you're not legit until you have a physical product that you can send to the reviewer. I saw this exact situation for myself a couple of years ago when I was producing the first SNEW album
It used to be that pressing CDs was a pain since you had to not only pay for them up front, but keep them in inventory and distribute them as well, but even this isn't much of a problem these days. Services like Kunaki not only allow you to press CDs on demand, but they'll drop ship them as well. They look like a million bucks (as long as your artwork looks that way) so that old worry at the "CD-R look" doesn't apply.
So while there's no doubt that the music world is more digital than ever, the CD is still a useful distribution tool. Ignore it at your own peril.
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