What I saw on the web on 2023.9.19

1. 古琴曲 山居 Taoist Guqin music "Retreat in the mountains"
   by 南承道人
   https://www.youtube.com/watch?v=6KdMgMG1FQA
   your morning plucked zither playlist
   via googlery, cuz i like guqin
   
   
2. When Five Isn’t Prime
   by James Propp
   https://mathenchant.wordpress.com/2023/09/18/when-five-isnt-prime/
   providing a gentle historical intorduction to the theory of rings
   via rss
   
   
3. Çifteli: This microtonal instrument changed the way I think about music
   by David Hilowitz Music
   https://www.youtube.com/watch?v=dTeSv0SKlGc
   what a fun little instrument!
   via youtube recommends