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If you're looking for some other options, I suggest checking out the Wikipedia page on this topic. You can find it at the link below:
List of online music databases
I have not used them all, but AllMusic is quite good.
Have fun exploring the others and let us know what you think of them. You could even do this by using the "answer your own question" ...
Only top voted, non community-wiki answers of a minimum length are eligible
