Joining and Other clauses Assessment Question 4

Screen Link:

  1. Write a query that displays all invoices for which the customer’s country is different from the billing country. Your query should return all columns from the invoice table.

My Code:

SELECT AS artist_name, COUNT(tr.track_id) AS num_of_songs
  FROM artist
  JOIN album AS al
    ON artist.artist_id = al.artist_id
  JOIN track AS tr
    ON al.album_id = tr.album_id
  JOIN genre AS gr
    ON tr.genre_id = gr.genre_id
 WHERE = "Rock" AND (tr.composer =
GROUP BY artist_name
ORDER BY artist_name ASC;

What I expected to happen:

What actually happened:

I feel like I am close but I am still not doing it right.