span, break
   can be used in MIDI.Read for searchNoteOff, moveTempoToHead

Haddock documentation for functions

monotony check on AbsoluteEventList

take, drop, splitAt
   There are too many variants,
   and I do not know which ones are needed, and how to name them.
   I'll wait for the first usage.

zipWith

Relative.TimeMixed: better names for
   appendBodyEnd
   prependBodyEnd

!! can done with getBodies, getTimes

segmentBefore, segmentAfter

AlternatingList's laziness should be more fine-grained.
   The underlying list-of-pair structure still leaks.
   You can observe it when applying 'mapInit' functions.


== done ==

distinction between AbsoluteList and RelativeList with a newtype?
   seems to be sensible but requires more wrapping
   Shall we only wrap the 'time' value?
   This way we could share types between modules.
   This way we could not simply define an Arbitrary instance for Absolute EventLists.