To qualify, find any 12 caches with the name of a song plus the artist/band who performed the song (or the composer of the song) in the cache title. You can use any genre of music - doesn't have to be rock'n'roll.
Song titles have to be complete as they were listed in the artist's discography, except that punctuation can be omitted/changed. The artist's name must be easily recognizable, so you could get credit for "Kanye" without "West" but you can't use merely "Robin" in place of "Robin Trower".
Alternatively, you can qualify by finding twice as many caches,12 each with the name of a song and 12 others with the name of a musical artist (or composer). And in this case, you can mix and match. You can find one cache named "Hound Dog" without having to find a cache named "elvis"; you can find a cache named "Mozart" without having to find one named, for example, "The Marriage of Figaro".
To clarify: You can blend both types of qualifiers as long as you end up with a combination of 12 songs and 12 artists total. It'll be easy!
As with my other challenge caches, one cache that you place and maintain, or an event that you host, can substitute for any one of the requirements, but only one. (Sorry, KEMBORG.)
The difficulty rating is my estimate of the difficulty in finding the qualifiers. The cache itself is a 1.5 difficulty in a typical mag hide near one of Hollister's favorite meeting locations. Not too scenic, but there's a walkway over thataways past the dumpster across the parking lot ... to a source of joe and patio seating.
Enjoy the road trips, turn the music up, not so loud that it harms your hearing. If we can hear your music past your earbuds, you've got it up too loud. And if you've got a particular earworm, please don't share it in the logs!
Congratulations to KfromCA on the special "FTF" with only 12 qualifiers, each with both artist and song combined. Quite an accomplishment!