I'm trying to install musescore but this error comes ahead:
sudo apt-get install -f but nothing happens. Any ideas?
sudo apt-get clean
and then try again this command:
sudo apt-get install -f
sudo dpkg --configure -a
and finally update your packages:
sudo apt-get update
If this doesn't work I'd advise you to install synaptic package manager (it's a gui client) and it will be way easier to manually remove the broken packages.
To install synaptic just run this command:
sudo apt-get install synaptic
And it should appear on your slingshot on the system tools tab with an old weird icon.