On my website you can find drone tone files.
12 files, each 65 seconds, droning on pure perfect fifths
(3:2 ratio, top note raised 2 cents, all that jazz)
Played back to back, the files last 13 minutes.
Put them on your ipod and spend those 13 minutes playing along with the drones, making things up as you go. Long tones, melodies, lip slurs. Just play beautifully and listen carefully.
Here's a link to the drones..
Here's a link to a summary of pitch adjustments needed for certain intervals.
