im using garageband, and i dont know what the key of a certain bass line is, if anyone knows any good tricks, or can offer some advice that would be killer
i would assume it is in the same key as the other instruments in the song.
1965 Fender Mustang not a RI
Squier Vintage Modified Jazz Bass

Peavey Classic 50
Avatar 2x12

sorry, its a loop, i guess i should have said that first. I downloaded it and i can't tell what the key is
Take all the notes, put them in a line from A to G and count the sharps or flats. From there, use the circle of fifths and see where it alligns.
The "Popped Collar" Award(Sexiest)

The "Rest In Real Life" Award(Best Past MT Mod)