How to say notes in Spanish

The Spanish word for notes is notas.
How to pronounce notas in Spanish:
Click to hear the pronunciation of notas  
Examples of notas in Spanish:
Él escribirá sus notas en la biblioteca.
He will write his notes in the library.

¿Tú estás contento con tus notas?
Are you happy with your grades?

Tú estás leyendo las notas del maestro.
You're reading the teacher's notes.

Do you know another example that uses notes in Spanish? Please tell us where you read or heard it (including the quote, if possible).