https://www.musical-u.com/learn/how-do-you-hear-the-difference-between-bass-line-and-melody/
How do you hear the difference between bass line and melody?
This is the kind of question which might seem trivial but can actually be quite challenging. So if you’re not sure if you can do it: don’t be embarrassed!
There are however some tips and tricks you can use, and several different ways you can train your ear to distinguish bass line from melody.
Here are some we’d suggest:
https://www.musical-u.com/learn/how-do-you-hear-the-difference-between-bass-line-and-melody/