Orivej Desh dd166f4cb4 solfege: fix run ...

It was failing with:

    Traceback (most recent call last):
      File "/nix/store/…-solfege-3.22.2/bin/.solfege-wrapped", line 55, in <module>
        from solfege import presetup
      File "/nix/store/…-solfege-3.22.2/share/solfege/solfege/presetup.py", line 22, in <module>
        import gtk
    ImportError: No module named gtk

2020-03-27 00:06:41 +00:00

..

default.nix

solfege: fix run

2020-03-27 00:06:41 +00:00