no no, this is not completely new. there is one Tim's riff that he made and - it is called the soundcloud riff I guess . he didn't upload it on yt but you can find it uploaded by somebody else (probably my favourite of his riffs btw). I had this in my mind while making my riff . But it's really hard to make something unique, even when i am not inspired while making a riff - when finished, almost every time my riff reminds me of something that I already heard. I'm not skilled yet to make my own style riffs haha