Help for the propaedeutic admission exam

[faa2010]

Hello,

I live in Mexico and I am thinking to present the next year the exam to enter to the propaedeutic courses in the ENM in Mexico.

The courses are required in order to enter to the Major in Piano in 3 years.

Apart from preparing the pieces I have to play, there is another part which consists of General Music Aptitudes, which consist in music theory and ear tests.

I don't more about this part, but can you give me suggestions and advice about how to improve these parts?