Tidal run and .. generate sequential integer patterns compactly

Instead of writing out a rising sequence of indices by hand, Tidal offers shorthands. run N produces the pattern 0 1 … N-1 as a control pattern, and the range operator "a .. b" expands to every integer from a to b inclusive. These are typically fed to n to step through a sample folder or to note to walk a scale, and combine with other functions (e.g. palindrome (run 4) to go up then down). They keep sequential patterns concise and easy to reparameterize live.

Examples

d1 $ n (run 4) # sound "arpy"     -- 0 1 2 3
d1 $ n "0 .. 3" # sound "arpy"    -- same thing
d1 $ palindrome $ n (run 4) # sound "arpy"  -- 0 1 2 3 2 1 0

Assessment

Play the first eight samples of the ‘arpy’ folder using run, then rewrite it with the .. range operator. Wrap it in palindrome and describe the resulting order.