source file: m1412.txt Date: Mon, 11 May 1998 16:25:02 -0400 Subject: RE: Jon Catler's desc. of undertones (digest 1411 topic 6) From: "Paul H. Erlich" The lower tone has to make superparticular ratios with the upper tone. You don't seem to be doing that in your example. Anyway, the result won't really be a (conventional) minor scale; it will be an undertone series, i.e., all the notes which share a common overtone -- in this case, B.