Strictly speaking, the Muse doesn´t have a "sequencer" -- it has a couple of switches that can be combined in numerous ways to produce unpredictable strings of pitches, arranged in patterns of varying length, based on the output of logic modules, shift registers, and mojo. It is not exactly pitched, and if so, it isn´t always musically useful. The Muse delivers more arbitrary results, the approach to "programming" is a rather aleatoric one. It is improtant to wear goggles and a white coat when programming it -- I am sure it would make a fun episode starring Professor Bunsen Honeydew and Beaker ("... where the future is being made today.").
The video isn´t exactly representing the Muse´s features -- you cannot determine pitch exactly and have it played back by the machine. Still a nice tool, though. Looks fun.
"Like the light from distant stars, Stephen Parsick's music has existed for some time, but is only now reaching us on Earth." -- Chuck van Zyl / Star´s End