How many tracks does each genre have and what are the names of the top 5?
SELECT T1.name ,  COUNT(*) FROM genres AS T1 JOIN tracks AS T2 ON T2.genre_id  =  T1.id GROUP BY T1.id ORDER BY count(*) DESC LIMIT 5;
SELECT T1.name ,  COUNT(*) FROM genres AS T1 JOIN tracks AS T2 ON T2.genre_id  =  T1.id GROUP BY T1.id ORDER BY count(*) DESC LIMIT 5;
[{'name': 'Rock', 'COUNT(*)': 1297}, {'name': 'Latin', 'COUNT(*)': 579}, {'name': 'Metal', 'COUNT(*)': 374}, {'name': 'Alternative & Punk', 'COUNT(*)': 332}, {'name': 'Jazz', 'COUNT(*)': 130}]