Learning a handful of scales got me a long way toward sounding like I was good guitar/music. Then the progressions on top of that allowed me to make songs that

Learning a handful of scales got me a long way toward sounding like I was good guitar/music. Then the progressions on top of that allowed me to make songs that sounded like songs. But just knowing a scale is worthless unless you know the key a song is in, so I can not play with others really.