Low notes?

As a detective trying to solve the mystery of the crossword clue ‘Low notes?’, my initial thought might lead me to something musical. However, upon further examination, I notice that the question mark indicates that the answer may not be what it seems. I start to think outside the box and consider other meanings of the word ‘notes.’ Suddenly, it hits me – perhaps the word ‘notes’ is referring to a written message or communication, and ‘low’ is an indicator of something that is deep or base. And then it clicks: MOOS, the deep and low sounds that cows make. It’s the perfect answer to the crossword clue. Sometimes, the key to solving a mystery is to look beyond the obvious and think creatively.