Re: ...for the jazz cats ...
Maybe it's in the "written for or inspired by Nica" that makes the difference.
Pannonica is a type of moth that her father loved and butterflies are a type of moth. Possibly
Sonny Rollins version was with a nod to Nica (inspired by Nica) and connected by the title
"Poor Butterfly". Sonny Rollins was one of the many great jazz musicians she interviewed
for the book.
I would guess that the same holds for the various versions of Pannonica. (I haven't heard them all so didn't know if they were completely different songs or not....but if not, then they
must have been inspired by Nica and hence the credit in the book.)