Is it sinful to say swear words in my head?

Hi, so a lot of my music has sinful words. Every time I listen to one and sing it in my head, I filter out the swear words. I was wondering if God sees me listening to music with swear words as sinful or not? I don’t want to do anything that separates me from Him. I try to block out the bad words and not let them affect my thoughts or actions. Does it matter what the song contains if my heart and intentions are still focused on doing what’s right?