> You said: In a C to C octave the lower 5th interval C to G will be the > same beat rate as the higher 4th interval G to C. > > ...In the C to C octave described above, is the lower 4th interval, (C > to F), then also the same beat rate as the higher 5th interval, (F to C)? > I have to chime in: Doesn't anybody use the 10th - 17th test for octaves anymore? For those that don't know: C3 - C4..you want to test that octave.. Play Ab1/G#1 along with C3(10th). These 2 notes will establish a beat for you. Then: Play Ab1/G#1 along with C4(17th). This should beat slightly faster than the 10th..not alot faster, just slightly faster. If the 17th is beating slightly faster, then your octave is fine..slightly slower or the same, then you need to tune C4 a tad sharper..a little too fast, then tune C4 down slightly. You should hear the 17th want to "walk a little quicker" than the 10th. NOT ducking for cover, and the flame suit is at the cleaners, -Phil Bondi(Fl)
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