I have featured live looping artists like Dub FX in the past, and recently I mentioned Kimbra's live looping at the latest SXSW convention. Live Looping is using looping software to record short segments of music that are then "looped", or repeated. A single performer can create layers of music to perform on top of. Live looping takes skill and an understanding of orchestration. These artists make live looping look easy.
Three days ago, YouTube a cappella artist Mike Tompkins took up a challenge given to him by his fans - to do an a cappella cover of a dubstep tune. Using Ableton Live software and some controllers, Tompkins did a really excellent cover of two dubstep artists - Skrillex and Santigold. As I have mentioned previously, dubstep is a genre of music that is exploding in popularity with high school and college age students. The dance beats and electronic sounds of dubstep appeal widely to many youth, as evidenced by the fact that Tompkins' video is alredy up to half a million views in the first three days!