namark/libsimple_motion

what even is a tween?

namark 6db2dc974a allinclude		2 miesięcy temu
source	6db2dc974a allinclude	2 miesięcy temu
unit_tests	2dbc37866b Default constructed melody considered empty/done.	3 lat temu
.gitignore	564130634c Initial state extracted from sketchbook.	3 lat temu
COPYRIGHT	e1af1c5cf3 Updated copyright.	4 miesięcy temu
LICENSE	23f5334312 copyright license files	3 lat temu
Makefile	564130634c Initial state extracted from sketchbook.	3 lat temu
README.md	564130634c Initial state extracted from sketchbook.	3 lat temu

what even is a tween? shorthand for between?? what even is between???