I would like to do more recording and posting on YouTube. I see many people playing along to tracks - sometimes the original tracks. How does one go about using a backing track without violating copyright laws? Does the fact that some of these people mix the track very low have any relevance to the actual law? I work for a company that produces some media. They say that a clip of a work that is less than 18 seconds can be reused without permission. Are there legit ways to use a song or backing track in a YouTube video without violating the copyright? Thank you.