Simplification

generator/solo/groups.py

@@ -61,6 +61,15 @@ def signature(notes):
     for i,n in enumerate(notes))
 
 
+def descriptor(pattern, duration):
+  """Retain ordered attacks, durations and space, including a trailing breath.
+
+  Absolute placement belongs to the caller. Equal counts or Boolean labels
+  do not make two different rhythmic sentences interchangeable.
+  """
+  return (duration, tuple(pattern))
+
+
 def broaden(pattern, arrival, release):
   """Reopen an editable binary tail; never slice a tuplet or inherit its phase."""
   if (arrival*2).denominator!=1 or (release*2).denominator!=1:return ()