In lots of motion reels, people have used some special type of music, which is very synthetic, with crackling sounds etc. I'm wondering what this type of music is called, and if there is anywhere on the internet I can find this kind of music, free for use. I've quickly found some examples of the type of music I'm talking about. (I'm not interrested in knowing the names of the following examples, but more what kind of genre it is.) Here goes...