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Today we tackle the 17 Tone Puzzle – a microtonal puzzle of sorts in 17 edo (or 17 tone equal temperament) left to us by the late George Secor. George wrote a paper called “The 17 Tone Puzzle (and the NeoMedieval Key That Unlocks it)” exploring the idea that had history had been a bit different in the middle ages, we may have ended up with a 17 note tuning system instead of a 12 note system. In this video we review his work, and attempt to solve this 17 Tone Puzzle once and for all. Topics covered in this video include: 17 EDO, 7 TET, Temperament theory, Quarter Comma Meantone, Pythagorean tuning, Pythagorean 17 note tuning, the history of consonance and dissonance, music philosophy, Ernst Levy, the monochord, Margo Schulter, medieval music theory, George Secor, Guido of Arezzo, Marchettus of Padua, Nicolo Vicentino, 31EDO, the Archicembalo, James Tenney, microtonality, medieval harmony, makam/maqams, Safi al-Din al-Urmawi, and Persian, Turkish and Middle Eastern tuning systems.
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Things to check out:
George Secor’s 17 Tone Puzzle: https://anaphoria.com/Secor17puzzle.pdf
Farzad Milani’s Persian 17 Tone System: • Helmholtz, Hedayat, Pythagorean tuning, an…
#musictheory #medieval #medievalmusic #earlymusic #microtonality #microtones #tuningtheory #medievalhistory #17EDO #17tet
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11 May 2026 #science #biology #bee
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Hello and welcome! My name is Anton and in this video, we will talk about a strange discovery in a New York cemetery – bees, lots of bees
Links:
https://link.springer.com/article/10….
#science #biology #bee
0:00 NYC cemetery with a surprise
1:05 5.5 million bees
2:27 How this was discovered
3:02 Regular mining bees
7:05 Why they are so important
7:45 Discovery from the NYC cemetery
9:25 Major implication for pollination
10:12 Strange new ecosystem
11:30 Why cemeteries?
13:00 Conclusions
Enjoy and please subscribe
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