Easy opera arias/lieder

[HeddaH]

Hi. Easy arias/lieder with a strong repetive melody and short lyrics.

I will soon apply to Opera Undergraduate educations around Europe.

I am in a hurry. 

I am a soprano. 24 years old. I have b12 deficiency so a little problem with memory.

I live in Sweden and wonder if you know arias and lieder that are easy to remember with a easy melody and short lyrics.

Maybe something like this (repetetive) https://youtu.be/-7qYeZcOioI but arias/lieder and for a soprano soloist.

Thank you in advance!
Hedda Nilsson