nixpkgs/pkgs/misc/solfege/webbrowser.patch

Fix startup.

--- a/solfege/mainwin.py
+++ b/solfege/mainwin.py
@@ -27,2 +27,3 @@ import textwrap
 try:
+    webbrowser.register_standard_browsers()
     i = webbrowser._tryorder.index("x-www-browser")