I think I'm posting this in the right place, really enjoying this site and the lessons are great! But there's one thing that I really don't understand and want to real soon. So far I've learned the C major scale, B Major and the C minor scales and I enjoy practicing them a lot in all their different positions.
What I want to know is when for example a song is in the key of say C, does that mean I can just use the notes in the C major scale to jam along and it will go with the song?
Also how do I find what key is a song in, someone I think mentioned that the first note of the song is the key it is in, the first note being the first sound you here or the first word sung?
Sorry if this all seems too basic but I'm just a beginner and really want to learn.
Thanks in advance.