Free Will by Rush is played in the key of F# at a intermediate difficulty level, originally released in the 1980s. It uses 2 chords — F# B — arranged in the I-IV progression.
About the I-IV progression
The I-IV two-chord vamp alternates between tonic and subdominant. It's a favorite of reggae, folk, and any genre where the harmony steps back to let the groove drive.
Playing in the key of F#
F# major shares the same feel as Gb. Capo the 2nd fret and use E-major shapes.
Related songs
More songs in the key of F#
More songs using the I-IV progression
Learn to play Free Will by Rush on guitar. It sits in the key of F# and uses the I-IV progression with the chords F# B.