FILTERTREE

Here is the documentation of "FILTERTREE" object =>

FILTERTREE

Arguments : tree places
[generic-function]

replaces expressed notes in given places with rests.

Here what filtertree do in my computer (OM6.1) =>

insert a rest in given places using the duration of the note, move all the remaining notes to the next rhythm value, erase all the notes [where n = length tree places argument] that exceed the tree