John Carlos Baez on Nostr: npub1qtkdu…txqrw - thanks, that's really interesting! We would have the group Z/7 ...
npub1qtkdu9s8mnygvkcvycw0wtmp85t95v25v8eyavtkx2q0nhnuxmnq9txqrw (npub1qtk…xqrw) - thanks, that's really interesting! We would have the group Z/7 acting on the set of Melakarta ragas... 𝑒𝑥𝑐𝑒𝑝𝑡 that translating the śruti to another note produces a scale that may not be a Melakarta raga! This makes things mathematically more complicated. Instead of a group acting on a set we have a partially defined group action. But this may still be enough to create a groupoid where the objects are Melakarta ragas and the morphisms are the ways of translating the śruti in such a raga to obtain another such raga.
Published at
2024-01-15 06:30:13Event JSON
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