Le festin d'Esope by Charles Valentin-Alkan is a singular theme surrounded by various styles. Moods of love and hate and anger around the same tune. You will identify this tune very early, and you will recognise it again as the music plays along. This process will sharpen your ear to sound.
You will see how the same child can be adorned in different clothes.
What this will do for you is help you identify in music, a main tune, and understand how 'things' play around it. You will even wait for the main tune to come back after the playing is done.
In time, you will understand the moods.