Welcome to The Playlist, a series of songs that contains five different sets of coordinates inside one set of data.
The description for each of the five caches (excluding the final) is the same except for the Certitude Checker, so you don't need to read all five.
The songs only exist as data points - you do not need to listen to the songs or read the lyrics to get any coordinates, and the messages portrayed in the songs do not reflect the opinion of Bapboy or Geocaching.
Where any of the songs say "Remastered Year X" you can ignore this, and focus on the original release.
Each location has a unique solution, but each checker has the coordinates for the other four in the series loaded in as hints. If you get a correct set of coordinates, you will be told which one you've got right, and you can then go to that cache page for the green tick.
Don't forget to grab the number at the top of the log for the final cache in the series!
Part II
Part III
Part IV
Part V
Part VI - The Final
You can validate your puzzle solution with certitude.