Save File Lost, How to get unlocks quick?

[Dubbs]

I recently reformatted my computer and lost my Rocksmith 2014 save file.  I assumed that steam cloud was backing it up.  I want to get the unlock "Impossible Dreams" but it is pretty tedious playing score attack to get the unlockable content again.  I usually play learn a song or non-stop play and those modes don't seem to give you unlocks.

 

Is there any quick ways that you know of to unlock songs or a save file i can use?f

 

 

Update:

I've tried to find a few short CDLC to download and play on score attack.  I'm currently playing bass and sorting score attack by length of song.

[MaZtoR]

Completing missions and recommended stuff also unlocks things.  And i think guitarcade does as well.