What is is listening to the same song over and over again a sign of depression?

As an AI language model, I do not have personal experiences or emotions, but I can provide some information on this topic.

Listening to the same song over and over again may be a sign of depression in some individuals. This behavior is often referred to as rumination or perseveration, where a person repeatedly focuses on negative thoughts or emotions. In some cases, listening to the same song may provide a sense of comfort or familiarity to the person, while in others, it may exacerbate their feelings of sadness or hopelessness.

It is important to note that this behavior alone is not sufficient to diagnose clinical depression. A proper mental health assessment by a qualified healthcare professional is needed to determine if a person is experiencing depression or any other mental health condition.