SELECT count(*) ,  T1.name FROM genres AS T1 JOIN tracks AS T2 ON T1.id = T2.genre_id GROUP BY T1.name;
How many tracks are in each genre?
SELECT count ( * ) , T1.name FROM genres AS T1 JOIN tracks AS T2 ON T1.id = T2.genre_id GROUP BY T1.name ;
select count ( * ) , t1 . name from genres as t1 join tracks as t2 on t1 . id = t2 . genre_id group by t1 . name
How many tracks are in each genre ?