Riff Riddles (often called "name that noodle") is simply a matter of
identifying a rock song from the given clip. A deep, well-rounded
exposure to rock music will go a long way here, as will the occasional
problem solving skills. There are two sets of 25 here; I think
an "A" performance would be getting over 50% of them.
Note: you will need Flash to play the clips inline. With some
combinations of Flash/browser versions, the total time of the clip is
reported incorrectly. In this case, the clips are not being cut off;
they are, in general, supposed to be short.
Answers to set 1, for those who need them, are available here for $1.29