Listening to the same song on repeat can potentially have some benefits for deep focus, as it may help to eliminate distractions and create a sense of familiarity and comfort.

Some specific benefits that may be associated with listening to one song on repeat for deep focus include:

1. Improved concentration: By eliminating distractions, listening to the same song on repeat can help you stay focused on your work or other task at hand.

2. Increased motivation: Some people find that listening to music they enjoy can increase their motivation and help them stay engaged with their work.

3. Reduced stress: Music can have a calming effect on the mind and body, which may help reduce stress and improve overall well-being.

4. Improved memory: Listening to the same song on repeat may help improve memory and recall, as it can create an association between the music and the task at hand.

It's important to note that the benefits of listening to one song on repeat for deep focus may vary from person to person, and it's not necessarily the best approach for everyone. Some people may find that listening to a variety of music or none at all is more conducive to deep focus. Additionally, it's always important to be aware of the volume of the music you're listening to and to use earplugs if necessary to protect your hearing.