[Vicomte13]

"Perhaps you'd share your qualifications to pronounce on matters of music?"

Of course!
If I like it, the music is good.
If I dislike it, the music is bad.

In the particular instance, I like the music of Eagle's Wings.
Therefore it is good.

[ninenot]

Thanks.

Think of "musical opinion" as a term VERY similar to "informed conscience" and you'll do just fine.

Consult with someone who is knowledgeable...they are all on the "response" line in this very post.