Ok, so I'm making a beat. And it was all working just fine until I tried doing that distorted 808 shit, so I just made a separate bass track, EQ'd it and put a Calf Limiter LADSPA on it. Now, it was working fine when I made it. Then I left it for like an hour in there, and when I came back to give i...

I'm starting to use this program and I don't know if I can change the tempo halfway through the song... If it's possible, then please help!!!