Re: GSoC 2020 update, July 18

[Lukas-Fabian Moser]

Hi Pál,

> in ancient (ars subtilior) notation there actually are noteheads with
> two stems (which may also be flagged differently), called "dragma".
> a picture search for "dragma ars subtilior" returned poor images; one
> not entirely useless is
> https://www.last.fm/music/Philippus+de+Caserta/+images/f82a66af9573ba3cf431b0b1986f07e8
> (staff three, the black block between two red block in the first half
> of the staff); or see the youtube video
> https://www.youtube.com/watch?v=wd3ouxA9p-o

See also the examples given in Apel, the first of which being

https://archive.org/details/notationofpolyph1953apel/page/392/mode/2up

Best
Lukas