Nautilus doesn't preview audio files

[Ricardo Pérez López]

Hi there.

Today I noticed that Nautilus doesn't preview the audio files
(.mp3, .ogg or .wav). When I put the mouse cursor over the file icon,
the "musical icon" appears over the file icon, but nothings more
happens. Nautilus is configured to preview the audio files only if is a
local file.

Moreover, if I right-click over the file and select "properties" from
the contextual menu, Nautilus hangs.

Any ideas?