Tune In Rock Out Puzzle and Song: Dan Katz Sound Engineering: Ray Jones The song described in the conversation can be found on LAMP, MIT's Library Access Music Project, which allows you to search for CDs in a database and play them over selected channels on MIT cable. The album is "My Socrates Note" by Setec and the Astronomers, which has only one track, "The Riddle," which has the following lyrics: My first is not in outer but it is in hour My second's in devoid but it's not in devour My third's not in philtre but it is in trifle My fourth's not in falter but it is in rifle My last's not in helcopter but it is in corps Together we made music back in 1954 Now go ahead and solve the riddle you've heard And when you're done call in the answer word Now go ahead and solve the riddle you've heard And when you're done call in the answer word Of course, some of these words are not spelled as you might expect when hearing them, but the other spellings yield no possiblities for letters (for example, no letter is in trifle but not in filter.) Once you have the correct spellings, the answer is clearly HI-FIS.