diff --git a/resources/instruments/mdl_1_3_0.xml b/resources/instruments/mdl_1_3_0.xml
index 99780f0..322358c 100644
--- a/resources/instruments/mdl_1_3_0.xml
+++ b/resources/instruments/mdl_1_3_0.xml
@@ -1651,7 +1651,7 @@
                     <variant pitch="51">
                         <tremolo>buzzroll</tremolo>
                     </variant>
-                    <variant pitch="50">
+                    <variant pitch="51">
                         <articulation>sforzato</articulation>
                         <tremolo>buzzroll</tremolo>
                     </variant>
@@ -2478,7 +2478,7 @@
                     <variant pitch="51">
                         <tremolo>buzzroll</tremolo>
                     </variant>
-                    <variant pitch="50">
+                    <variant pitch="51">
                         <articulation>sforzato</articulation>
                         <tremolo>buzzroll</tremolo>
                     </variant>