In the giant sea of data and content floating around, you need to have yours thoroughly meta-tagged (described) if you want other people to find it.
I have experimented with the number of different tags that can be assigned to a piece of music, and I made these tags searchable, enabling you to make very unusual searches across the entire catalog.
In Fluxic 1.0 (The Expanding Met Work) I have developed a meta-tagging system, that allows for precise and rather entertaining selection of music