I can play like 10 different scales by memory but how do I use them? I don't get it. When I'm jamming with my drummer, I play whatever comes out, kind of freestyle, but then I throw a scale into the mix and it doesn't fit, it kind of stands out like "why did you play that?" How do you use a scale? Are scales just for practice? How do you put them in a song? I just don't get it.