One of the reasons listed in the gemorrah for achur (R Meirs rebbe) going off the derech is that he was always singing goyish music.
Al pi mussar
I would say any goyish lyrics no matter how “clean” is probably not clean. If the song has to do with any goyish topic, and you sing it over and over, it gets in your head.
Anything in your head affects how you think and respond.
Our religion is all about degrees of sensitivity.
Let me ask you this
If you have ever tried to stop listening to goyish music (and television) did you find it difficult?
Did you maybe stop for a while and then relapse?
I struggled with these things in my early years and only recently have I seemingly mastered the ability to be indifferent to these 2 things.
Why was it difficult to stop? why the relapse?
I would venture that bad habits are always difficult to stop because there is a yetzer hara, and this should prove that it’s not good for you.
I can also tell you that whenever I relapsed, there was a yereda in my davening and desire and ability to learn. when I would stop, it would take , on average 3 months , to get back to where I was before the relapse.
Before I started learning (I didnt enjoy it), a rebbe of mine once said to me “How do you know if you don’t like it? you never really tried it?”
So I decided to try and for 2 months I pushed myself to be the masmid I didnt have any desire to be.
After two months, I understood why people enjoy learning.
I’ve, gone up and down many times since then, but Ive seen many times how a push of a couple of months brings a new perspective and sensitivity.
So why not try an experiment? Try 2 months without goyish music? and at the same time, push a little more in learning. Then start listening to the music again and see how it makes you feel and what it does to your learning.
Hatzlocho