The strict definition of haiku is like this:
A poem of exactly seventeen syllables that indicate the season.
It should contain an emotional word.
It should be one complete sentence.
Anything else is a Senryu, a jingle, or a ringgle (a jingle that sells
nothing), especially if it fails to indicate the season. If it's less
than seventeen syllables, then you still might be able to find a tune
for it. As you follow more of the above rules it should become easier
to find a tune.
I've written a grand total of one haiku to about twenty-five senryu
(before I learned the other rules), and this is it:
http://www.mynumo.com/ringtones/preview.php?
Cat_Id=1&Cn_Id=8020">
Orchard Farmer IOW, the dream or delusion is an occupational
hazard.