Sumerian Tonal System

based on consecutive heptachords.

Scale numbers: 5x 36/60/(70), 2x 19/33

• https://en.m.wikipedia.org/wiki/36_(number)
• https://en.m.wikipedia.org/wiki/60_(number) 60 = Anu  𒀭
• https://en.m.wikipedia.org/wiki/70_(number)
• https://en.m.wikipedia.org/wiki/19_(number)
• https://en.m.wikipedia.org/wiki/33_(number)

7 scales

• 5 with 60 semitones, 6000 Cent, 5 Octaves, cyclic, heptachord: minor seventh
• 2 with 33 semitones, not cyclic, heptachord: major seventh
• 7 tones per heptachord, 6 unique tones,  
• 7 heptachords, 6 unique heptachords,  
• 14 tetrachords, 12 unique tetrachords,
• 10 semitones per heptachord.

• https://en.m.wikipedia.org/wiki/Sexagesimal
• https://en.m.wikipedia.org/wiki/12_(number)
• https://en.m.wikipedia.org/wiki/7
• https://en.m.wikipedia.org/wiki/Week
• https://en.m.wikipedia.org/wiki/Sabbath
• https://en.m.wikipedia.org/wiki/Sunday