diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8cb6778..8369565 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to PyTheory are documented here.
 
+## 0.41.1
+
+- **Fix** — `to_abc()` no longer crashes on parts containing drum tones.
+
 ## 0.41.0
 
 - **ABC notation export** — `Score.to_abc()` converts scores to ABC notation
diff --git a/pyproject.toml b/pyproject.toml
index c9e1e63..e935245 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "pytheory"
-version = "0.41.0"
+version = "0.41.1"
 description = "Music Theory for Humans"
 readme = "README.md"
 license = "MIT"
diff --git a/pytheory/__init__.py b/pytheory/__init__.py
index c7bbae6..90e4dfa 100644
--- a/pytheory/__init__.py
+++ b/pytheory/__init__.py
@@ -1,6 +1,6 @@
 """PyTheory: Music Theory for Humans."""
 
-__version__ = "0.41.0"
+__version__ = "0.41.1"
 
 from .tones import Tone, Interval
 from .systems import System, SYSTEMS, TET
diff --git a/pytheory/rhythm.py b/pytheory/rhythm.py
index 646b6ed..bd1be5a 100644
--- a/pytheory/rhythm.py
+++ b/pytheory/rhythm.py
@@ -4442,6 +4442,10 @@ class Score:
         if tone is None:
             return "z"
 
+        # Skip drum tones — they don't have pitched names
+        if not hasattr(tone, "name") or not hasattr(tone, "octave"):
+            return "z"
+
         name = tone.name          # e.g. "C", "C#", "Bb"
         octave = tone.octave if tone.octave is not None else 4
 
diff --git a/uv.lock b/uv.lock
index 78d3162..cf0a3a5 100644
--- a/uv.lock
+++ b/uv.lock
@@ -690,7 +690,7 @@ wheels = [
 
 [[package]]
 name = "pytheory"
-version = "0.41.0"
+version = "0.41.1"
 source = { editable = "." }
 dependencies = [
     { name = "rich" },