7. A triplet is a series of how many notes? - I think it's 3 but it could also be any number of notes from what I read?

13. There are 6 whole steps in a whole-tone scale- True?

Thanks
-MC

7. Yes, but the three notes are in the time for two beats. http://www.youtube.com/watch?v=Ib9-Xq5f1F0

12. yes. http://en.wikipedia.org/wiki/Whole_tone_scale