Unit 16 Theory

Using the Top Octave Test

M3 = M10 < M6 = M17
1. Tune the top note as a clean DSU.
2. Check the bottom 4:2 octave (M3 = M10).
3. Confirm the M6 is a little faster.
4. Tune top note so M6 = M17.
5. Check the top 4:2 octave, M3 = M10.