events that share the same timespan, and spreads
-- them out during that timespan, so for example @arpeggiate "[bd,sn]"@
-- gets turned into @"bd sn"@. Useful for creating arpeggios/broken chords.
arpeggiate :: Pattern a -> Pattern a
arpeggiate = arpWith id

-- | Shorthand alias f
arpeggiate :: Pattern a -> Pattern a
arpeggiate = arpWith id
arpeggiate = arpWith id