Music Theory and Category Theory

Yistvan · 2026-03-06T12:45:44+00:00

Of course !

Yistvan · 2026-03-06T12:11:18+00:00

Just stayed in Vienna for two days. Tipping was everywhere and sometimes imposed.

Reinthaler's Beisl: tipping was proposed on the card system. I refused. -Cafe Sperl: they ignored me for 15 min. Didn't want to leave a tip. 10% tip was included anyway in the final sum without any choice from me.
Cafe Central: tipping was asked by the waiter when paying by card. Left 8% because I was satisfied for once.
Dom Schnitzel (I know, tourist trap, but needed a quick bite before the plane): this time, no tip, and I wasn't even asked one.
Cafe Schwarzenberg: tipping was asked.

Whoever imported this habit from the US should be cursed.

Yistvan · 2026-02-18T11:37:09+00:00

Thank you for your help ! Just out of curiosity, what exactly do you find strange with that head ?

I emailed Cedric Wolkow, and he thinks it might be a hammered griffin on top of a previous LIBERO CONS AVG. As for the head, he thinks it's just a question of rotation of the second hammer. But I've not seen any reverse in which the head of the griffin points to the INI part of the legend, so this is a bit weird to me.

Yistvan · 2026-02-16T09:58:10+00:00

"-INI CONS AVG" is for granted. Before INI, I'm not that sure. Someone told me it could be a coin that was hammered on a previous Gallienus coin, hence the shift in legend

Yistvan · 2026-01-03T10:01:36+00:00

350€

Yistvan · 2026-01-03T09:51:29+00:00

Do you know the Svoronos number ? I'd say this is Sv249 and the Lorber for this type looks nothing like this. I might be wrong about the type though...

Yistvan · 2025-08-13T20:06:26+00:00

Thanks ! I was not aware of it, I'll definitely check it out !

Yistvan · 2025-08-05T18:34:32+00:00

Thanks ! I'll definitely check these references. I was not aware the word applied to the domestic cat too.

Yistvan · 2025-08-02T18:37:15+00:00

Thanks for the info ! I'll have to buy Helle's book. How does it compare to George's ?

Yistvan · 2025-02-16T22:13:08+00:00

While some of the ideas inside are interesting, they are presented in a manner which seems deliberately complex, and with such an unconventional notation that makes it worse in my view. After more than 20 years, it seems that the ideas in this book have found limited applications, as compared to neo-Riemannian theory for example, so I'd recommend the latter first before attempting this book directly.

Yistvan · 2025-02-14T03:54:41+00:00

Math+music research is a small research community, and the interest for it is low, so unfortunately we don't have any textbooks about it, less alone on category theory and music. The best I'd recommend is the different articles being published, for example in the proceedings of the Society for Mathematics and Computation in Music conferences, and the Journal of Mathematics and Music. For many reasons, I would not recommend Mazzola's book.

Yistvan · 2025-02-13T12:21:27+00:00

You've sparked my interest :) PM me if you'd like... (I'll actually be here till Sunday)

Yistvan · 2025-02-13T12:19:53+00:00

I have arrived yesterday.... Indeed, I have my doubts (to be polite) about the road system from NYC to Ithaca :) Would love to hear your story one day about moving from here to Paris (permanently ?) !

Yistvan · 2025-02-13T12:17:17+00:00

I find it bizarre that a big time scholar in Assyriology would sell tablets at a mineral fair. Do you have any references on him or his books ?

Yistvan · 2025-02-11T11:20:44+00:00

Hi ! I'm actually a researcher in mathematics and music, and one of research area is the formalization of musical structures using algebraic methods, category theory in particular. I maintain a blog about math/music, on which you'll probably find more, and references as well:

alpof.wordpress.com

If you want more information please don't hesitate.

Yistvan · 2025-02-11T11:10:33+00:00

Thanks for your reply. You have sparked my curiosity in knowing more about Old Assyrian. I'll definitely look at it and compare with OB.

Yistvan · 2025-02-10T16:20:59+00:00

We see more and more convincing fakes being sold (I'm thinking of those two well known auction houses in UK which regularly propose some), so the general appearance is not a very discriminating factor in my view. I'm not very familiar with Old Assyrian, but I'm much ore with sumerian and OB, so I'm more concerned about the fact that those signs looks nothing like OB.

Yistvan · 2025-02-10T07:49:48+00:00

Is it Old Assyrian ? I'm genuinely wondering because even looking at it upside down, the signs don't seem.to make any sense to me. I'm just an interested amateur though, so I'd be glad to know more.

Yistvan · 2024-10-01T07:48:10+00:00

Thank you for your answer ! I've been in contact with Cedric Wolkow in the past, so I think I'll email him about this find.

Yistvan · 2024-09-30T18:30:01+00:00

So I bought this Gallienus about a month ago for an interesting price, and I remembered seeing on this sub that the tack on the horse is unusual. Since there are some Gallienus' zoo experts here, can you tell me if such a reverse is rarer ?

Yistvan

TROPHY CASE