Unsymmetrical dimethylhydrazine (UDMH) (1,1-Dimethylhydrazine) is a hypergolicrocket fuel[?] ingredient, often used in combination with the oxidiser, nitrogen tetroxide.
UDMH is toxic, and can explode in the presence of oxidisers.
... A hallmark of their concert sets were continuous sets of music where each song would blend into the next (a segue[?]).
Many of their fans, commonly referred to as ...