Bal b/f 589 Tempos+7 Tempos=596 Tempos Bal c/f
https://youtu.be/CEER1v456e4?si=Ex60URzefqXfofVf
很有道理，醍醐灌頂。 quotenote2020 IG
https://youtu.be/dIPl14EquNc?si=9Sf9p-nUNfBJNSWP
https://youtu.be/kmPBiIcV7XY?si=AGRYyCW-XceAf6S-