fromList
From TidalCycles userbase
Type: fromList :: [a] -> Pattern a
fromList takes a list of things and turns them into a pattern where each item in the list has a duration of one cycle, looping back around at the end of the list.
d1 $ n (fromList [0, 1, 2]) # s "superpiano"
is equivalent to
d1 $ n "<0 1 2>" # s "superpiano"
See also: listToPat