You should divide your tasks into 3 categories.
1. Mindless Tasks (e.x. Checking Emails)
2. Stimulating Tasks (e.x. Reviewing Flashcards)
3. Demanding Tasks (e.x. Activities In Your Notebook)
When you are doing the Mindless Tasks, you can throw some High-Energy music, since you can’t get distracted
When you switch to Stimulating Tasks, you could stream a Relaxing Playlist, or even some Backround Sounds
But when the homework gets harder, you throw on some non-lyric songs. Because this way, your brain won’t get distracted by the song’s lyrics