For individual song selections go to “Song Search” then to “Optional Filters” to look up different Music Categories within The Top 2,240 Songs of The 20th Century and The 21st Century Hits (2000-2012). You will then be able to prioritize key songs.
It will be like approaching a traffic light:
Green for – Must Play
Yellow for -Play if Possible
Red for – Do Not Play
Then use “My Request List” at the bottom to add your additional custom songs not found on the major lists.