For example, in a woman with a 21-day cycle, the follicular phase is likely seven days; in a woman with a 35-day cycle, the follicular phase is likely twenty-one days. (Note: It is possible for a luteal phase defect to shorten the length of the menstrual cycle â this will be discussed in a future article on Phase II.
The diatonic scales. The diatonic scale is most familiar as the major scale or the natural minor scale (or aeolian mode). The diatonic scale is a very important scale. Out of all the possible seven note scales it has the highest number of consonant intervals, and the greatest number of major and minor triads.he diatonic scale is a very important scale. Out of all the possible seven note scales it has the highest number of consonant intervals, and the greatest number of major and minor triads.
Its a half step. Take a more careful read of the very page you cited. What they're saying is that a diatonic semitone is a semitone that occurs between different letter names: E to F or B to C. As for there being a difference, Greg is right that there is no sonic difference: a semitone is ALWAYS a half step.eport Abuse. Actually, a  Chromatic Semitone is a Half Step; however, a  Diatonic Semitone is a whole step. EX. E-F is a Diatonic Semitone EX. C-C# is a Chromatic Semitone Read More ... http://www.greenspun.com/bboard/q-and-a-...