CREATE TABLE instruments (songid VARCHAR)
CREATE TABLE songs (songid VARCHAR)

What instruments does the the song 'Le Pop' use?
SELECT instrument FROM instruments AS T1 JOIN songs AS T2 ON T1.songid = T2.songid WHERE title = "Le Pop"
SELECT "instrument" FROM "instruments" AS "T1" JOIN "songs" AS "T2" ON "T1"."songid" = "T2"."songid" WHERE "Le Pop" = "title"