Thanks for your comprehensive mod!
1. done as you said, just make the background slowly fade away.
2. I let them fade out and also add some particle effects to make the transition smoother.
3. now I drag them to the front!
1. I will use the `c3.png` in sb folder, this one is much better.
2. umm actually not an easy thing to me. I use `OutSine` ease function in first part and `InSine` in the second one. Actually storyboard didn't provide a custom bezier curve animation controller, so basically if I want the transition more seamless, currently just set the second ease func to `none` is ok. I think this might be more seamless?
Originally, I wanted to show the fast drum such as 01:38:171- which were shorter compared to the previous 01:37:131-, but it seems that I made some mistake to let 01:37:577 (97577|2,97874|1) - this two to also 1/8 shorter, which is incorrect. I will let the 01:37:577 (97577|2,97874|1) - to be 1/2 length and 01:38:171 (98171|2,98468|1) - to be 3/8 length since this drum seems more short.