diff --git a/src/common/audio/music/i_music.cpp b/src/common/audio/music/i_music.cpp
index 08b8fcfd7d..b73c630ca6 100644
--- a/src/common/audio/music/i_music.cpp
+++ b/src/common/audio/music/i_music.cpp
@@ -270,6 +270,22 @@ void I_SetMusicVolume (double factor)
 	I_SetRelativeVolume((float)factor);
 }
 
+//==========================================================================
+//
+// test a relative music volume
+//
+//==========================================================================
+
+CCMD(testmusicvol)
+{
+	if (argv.argc() > 1) 
+	{
+		I_SetRelativeVolume((float)strtod(argv[1], nullptr));
+	}
+	else
+		Printf("Current relative volume is %1.2f\n", relative_volume);
+}
+
 //==========================================================================
 //
 // STAT music