Answer by Robert Fink for iTunes Match Alternative ... or some way of implementing this

You might consider Amazon's Cloud Player. If you pony up the subscription money, you can store upwards of 200,000 songs in Amazon's Cloud, which means they are available on ANY computer through a web browser, on desktop Macs using Amazon's Cloud Player software, and on iDevices using their Cloud Player App.

Getting a large amount of music onto the cloud is a pain, no question. (It took me weeks to upload my 500GB library.) But now I have access to all my music anytime, anywhere, even if I am using someone else's computer or on a PC.

The cloud player apps allow you to download any of your songs to any computer if you want to duplicate them locally. And, if you buy your new mp3s from Amazon, they'll just show up in your cloud player automatically.

It really does work, once you tough out the upload.

Edit: Amazon Cloud Player is indeed a good alternative. Nonetheless, if you want to stream your entire iTunes Library without paying for a subscription, I recommend using the Plex app. Just set up pled on your computer and your good to go with your iTunes Library at hand!