The key is in E Major.
The chord progression goes like E - C#m - B/F#,F# - B
I thought the chord progressions were I - Vi - V/V - I
But if you see the first bar at the picture, there is A# in the C#m chord.
This got me thinking this is a ii-V-I progression.
But then another question occurred.
Are ii V I chord progression's scale based on the upcoming I ? in this case the B chord.
If it is, doesn't this automatically cause key change ? Because by doing this, your appointing the I to be the tonic.
I never knew deep about the ii V I chord progression, but I thought I could just use it to any chords on the key to just pass by and add more harmonic flavor, but if this is the case, every time I use it to any chord that is not the tonic of the current key, it will cause key change...
Am I getting something wrong here ?