Does anyone know of any programs you can use to stream songs from youtube into a looper that can slow it down?

I recently have been using VLC media player. You can actually copy and paste a youtube link into it and have the exact quality of it and slow it down and loop, but it won't work anymore because it keeps giving me error. I was wondering if anyone knew of anything else. I do not want to use audacity or anything because I do not have a lot of the music on my PC and need to get it from youtube.
You could download the video with keepvid then play it in vlc. When you're done you can just delete the video.
For Frodo!
Quote by jrcsgtpeppers
No because a world full of marbles silly man is just as real as a half empty glass of microwaved nesquik.