the 7-limit diamond

I would like to point out that the 7 limit diamond was extensively
examined by Augusto Novaro in his "Sistema Natural Base del
Natural-Aproximado. Mexico, D. F. 1927. Like Partch, he realized such
Harmonic Constructs were not scales and added first the 6 pitches of the
9 limit plus the 21/20 and the 16/15 and their inversions which he
illustrates:
1/1 21/20 16/15 10/9
9/8 8/7 7/6 6/5
5/4 9/7 4/3 7/5
10/7 3/2 14/9 8/5
5/3 12/7 7/4 16/9
9/5 15/8 40/21 2/1
--
Kraig Grady
North American Embassy of Anaphoria Island
http://www.anaphoria.com