A few videos by LA duo BANTAMWEIGHT have shown off some pretty impressive musical skills, with seemingly half of the band members you'd expect or require. The first video is also shot from a second angle to give you an idea of what they're both doing.
It's a tremendous example of what can be done with layered sounds and a lot of practice - even in a confined space. The earlier videos are from a couple of years ago now, but they have recently uploaded some more.
How do you think they're making this happen?