I live with my DH in a cottage flat. A cottage flat is a block of four with each flat having its own front door and garden. We have no shared entry.
My downstairs neighbour let’s call her Jane has three children a son and twin daughters. Jane’s three children were all born a year apart in the late 80s. One of Jane’s daughters is expecting and today they started the baby shower at 1pm in Jane’s garden. At 9pm they finally moved the baby shower inside but we can still not only hear the music through the floor (Jane’s ceiling) but our sofas are vibrating. We have our tv at a volume of 84 and can still hear the music perfectly. Am I being unreasonable if it goes on after 10pm to ask them to turn it down. I don’t want to spoil the party but that will be 9 hours it has gone on for.