Yea it isn't as I have found to get the songs I always want..
I always try at later times for an artist of any means or obscurity until they show up.. Using any means under any criteria... using like a year and and album.. or artist and year or with by using genre.. or any number of combinations..
I usually see alot of crappy things before I see anything that addresses what I am looking for... Or the old stuff comes up way before I ever see the new stuff.
Mystic