diff --git a/music21/_version.py b/music21/_version.py
index c5a4c6fd4..518c9a43a 100644
--- a/music21/_version.py
+++ b/music21/_version.py
@@ -47,7 +47,7 @@
 '''
 from __future__ import annotations
 
-__version__ = '9.2.0b1'
+__version__ = '9.2.0b2'
 
 def get_version_tuple(vv):
     v = vv.split('.')
diff --git a/music21/base.py b/music21/base.py
index f58f7f7af..c2a6e2b37 100644
--- a/music21/base.py
+++ b/music21/base.py
@@ -27,7 +27,7 @@
 <class 'music21.base.Music21Object'>
 
 >>> music21.VERSION_STR
-'9.2.0b1'
+'9.2.0b2'
 
 Alternatively, after doing a complete import, these classes are available
 under the module "base":
diff --git a/music21/musicxml/xmlToM21.py b/music21/musicxml/xmlToM21.py
index aaae96a7e..648178dc8 100644
--- a/music21/musicxml/xmlToM21.py
+++ b/music21/musicxml/xmlToM21.py
@@ -2200,14 +2200,15 @@ def adjustTimeAttributesFromMeasure(self, m: stream.Measure):
             # otherwise it was likely the result of malformed MusicXML.
             if (diff > 0.5
                   or nearestMultiple(diff, 0.0625)[1] < tol
-                  or nearestMultiple(diff, opFrac(1 / 12))[1] < tol):
+                  or nearestMultiple(diff, 1 / 12)[1] < tol):
                 mOffsetShift = mHighestTime
             else:
                 mOffsetShift = lastTimeSignatureQuarterLength
                 warnings.warn(
-                    f"Warning: measure {m.number} in part {self.stream.partName}"
-                    f"is overfull: {mHighestTime} > {lastTimeSignatureQuarterLength},"
-                    f"assuming {mOffsetShift} is correct."
+                    f'Warning: measure {m.number} in part {self.stream.partName}'
+                    f'is overfull: {mHighestTime} > {lastTimeSignatureQuarterLength},'
+                    f'assuming {mOffsetShift} is correct.',
+                    MusicXMLWarning
                 )
         elif (mHighestTime == 0.0
               and not m.recurse().notesAndRests.getElementsNotOfClass('Harmony')