Depending on the song and the element you could fade the
Master chain
Busses
or individual tracks
If I'm doing individual tracks I prefer doing them manually (fingers on faders)
I might have to check this pad controller out. I use to have an MPD16 back in the day. Made one beat with it and then sold it on Ebay. Nice tracks by the way!
The main differences:
YouTube: You have no control over the platform and I don't believe there is a way to accept payments through it as of yet.
Website: You're in control of everything: Functionality, email list, payment processor, design, etc.
If you want to showcase your music, I think both...
I had a chance to play around with the new Beatstep Pro. Here's some tips, techniques and a walk-through of the unit hope you like the video
Please forgive me if this is posted in the wrong section