a. The songs playing in the background were composed by Bob.
b. The songs played in the bacground were composed by Bob.
I want to know which sentence is correct. Some say 'playing' is right but some say 'played' is right (we are not natives). Sometimes it is confusing for us (non native) to use '~ing', or '~ed' forms.
So, what is correct? or both are possible? I'm really confused by this question. I would be pleased if I got the answer. Anyway, thank you for reading this post.