I have no idea. Really. I love music (most forms), but I couldn't write a song if my life depended on it. How Beethoven wrote brilliant classical music while deaf? Not a clue! How Mozart began composing at the age of 5, writing symphonic, concert, chamber, choral, opera and piano? It's a mystery!
I don't understand periodic music... Medieval, renaissance, baroque, classical, romantic or even 20th century. Music theory? Huh uh.
I like all of these.... even some opera. I like swing, rock, country, jazz, blues and folk. I listen to pop and show tunes and I love choral music. But I don't understand how it is composed, what makes the notes fit together. What is the inspiration for a particular piece of music? I can figure out why a slaver who became a Christian wrote "Amazing Grace". And I know what prompted Loretta Lynn to write "Coal Miner's Daughter" and Dolly Parton to write "Coat of Many Colors". The motivation I understand, the method, not so much.
Gioachino Rossini was an Italian composer(1792-1868). He wrote 39 operas, including "The Barber of Seville", as well as chamber music, religious music, popular songs and instrumentals.
I understand one piece of music he composed.