Task: Text to Code
Input (English): Step 1: find the artist_name of artist table.
Step 2: find the song's artist_name of song table for which rating greater than 8.
Step 3: show the rows that are in the results of step 1 but not in the results of step 2
Output (English): SELECT T1.artist_name FROM artist AS T1 EXCEPT SELECT T2.artist_name FROM song AS T2 WHERE T2.rating > 8