Hey guys, this is my first post on this forum.
Last night we were playing songs at a party with some friends, and we tried to pick up the progression by ear… but there was a chord we weren’t able to get. Eventually we searched for the chords online, and this is the progression:
I - ii - iii - vi - II - IV - V7 - I
My question is… why does the II chord make sense? Its not acting as a functional secondary dominant…