There is a theme, that is maybe a melody or a rhytmical theme, and then there might be "tail" after it that has something to do with the theme but isn't anymore part of the theme. After the tail there might be a start of something new in the piece of music
Coda
when it wags its tail, it means its happy, and when its tail is still it means its bored, but when its tail is in between its legs it means its mad.
Coda means tail.
Nulla cauda is the Latin equivalent of 'no tail'. In the word by word translation, the adjective 'nulla' means 'no'. The noun 'cauda' means 'tail'.
music notes
Tiger by the tail. means you are in a potentially dangerous position.
It means they are stretching the feathers in the tail
It means that the mermaid that has a red tail is in-love!
That means it has no fur on its tail. It is fine. Maybe the cat kept licking its tail until the tail went bald.
When writting a quaver in music the tail must always go to the right. Including when upside down.
it means: the tail.
caudal