Sorry to hear about your cats behavior.
I have some experience with cat behaviors, it is common for cat owners to anthropomorphize reason(s) for cats behavior that they can relate to.
Urinating outside the litter-box is either a medical condition usually called cystitis, or a behavioral condition. I suspect your cat is behavioral. Behavioral conditions usually are related to you cat being unhappy or stressed about something. There are medications that can help with un-happiness or stress as it is often difficult to identify the source of the un-happiness or stress. Common sources are
Cat-cat
• Living alongside an incompatible cat
• Despotic cat(s) entering or threatening to enter cat's home and/or intruding into resident cat's outdoor territory
• Cat-other animal
• Frequently visiting dog or new dog or puppy come to stay
• Cat-human
• New member of the family such as new baby or frequent visitors
• Family member or frequent visitor displaying inappropriate handling and/or other interactions towards cat
• Use of punishment such as verbal correction and/or physical correction (e.g., water sprayers)
• Living as a pet when not socialized to people
Physical
• Physical disruption to territory such as building works, redecoration, new furniture
• Moving house
• Unpredictable and restricted outdoor access
• Lack of key resources or inadequate distribution of resources
• Irregular and unpredictable feeding times and cleaning of litter boxes
Health
• Pain
• From disease or injury and inappropriately managed (e.g., inadequate pain medication)
• Illness- commonly gastro-intestinal (chronic vomiting) or skin (itching/biting)
• Challenging medication administration
Sensory
• Intolerable and/or unpredictable noise (e.g., frequent episodes of loud music)
• Strong smelling detergents, perfumes or other chemicals regularly used in the home
• Regular removal of scent marks in the home such as facial secretions from facial rubbing
The above is from a paper from a Board Certified Veterinary Behaviorist and it does mention loud music.
You might ask your veterinarian for some help with medications if you can't identify the stressors.