word usage - Where to place 'only'

I have seen the word 'only' placed both before and after a noun. Where should the word 'only' go in this sentence? Is it the writer's choice?

1. 
   
   

   If you have attended every lesson, only the songs need to be rehearsed at home.

   
   


2. 
   

   If you have attended every lesson, the songs only need to be rehearsed at home.