This script is to smoothly animate an analog-style VU meter. Based on rotation of layer. The main advantage is new method of calculation of intermediate frames. There is no difference in time to turn the needle by 5 degrees or to turn it by 50 degrees. It is more close to realistic look than any method of animation using AnimatedLayer. Usage described in vu.m file. See it in the example skin attached here.
(meaningless

) screenshot of the example skin:
Was also used here