Draft:Sing free/Consonant intervals list (ear training)

TO DO
 * 1) Finish this page and post wiki sisterlink at List_of_pitch_intervals
 * 2) Record sister link but also mention need to change to ogg files of saw versus sine
 * 3) Go back to the audacity study of the perfect fifth (original files lost) using python to generate the signals. I believe it was a 4 second signal with a drum to illustrate the beats.  It should also include the tritone, I think.

Draft:Sing_free/The_physics_of_music | List_of_pitch_intervals