① I like musicians who write can write their own songs.
②I like the musicians who can write their own songs.
What are the differences between the two sentences above?

Question

Answer

The first one is better. You're not talking about any specific musicians so you shouldn't use the definite article. For contrast, here's a sentence where you're talking about specific musicians where you would use "the":

I like the musicians who wrote this song.

See English Grammar in Use Unit 75 for more examples.