>>Played trombone in band class for eight years
>>Wasn't bad
>>Still couldn't tell you what key signature a song is in, or the names of notes

I'm in deep shit. Need to quickly learn some music theory stuff to pass a placement test to begin working on my major. Any advice or study guides help.

Already taken this thing once and got a 60%. Need a 70 at least. Mostly shit I should already know like what you'd learn in the first year or two.