> Edit: For those that don't know, in most western music you're only going to use 8 out of the 12 possible notes most of the time.
You mean 7 notes. Traditional music notation and terminology is confused in many ways, one of which is a fencepost-counting error. As a result: octaves are actually seven notes apart in a scale, two major seconds make a major third (2+2=3?), and two octaves make a fifteenth (8+8=15!?).
You mean 7 notes. Traditional music notation and terminology is confused in many ways, one of which is a fencepost-counting error. As a result: octaves are actually seven notes apart in a scale, two major seconds make a major third (2+2=3?), and two octaves make a fifteenth (8+8=15!?).