CREATE TABLE songs (songid VARCHAR)
CREATE TABLE vocals (songid VARCHAR)

Find the number of vocal types used in song 'Le Pop
SELECT COUNT(*) FROM vocals AS T1 JOIN songs AS T2 ON T1.songid = T2.songid WHERE title = "Le Pop"
SELECT COUNT(*) FROM "vocals" AS "T1" JOIN "songs" AS "T2" ON "T1"."songid" = "T2"."songid" WHERE "Le Pop" = "title"