Can you list all the instruments used in the song Le Pop?
select distinct instrument from instruments as t1 join songs as t2 on t1.songid = t2.songid where title = "Le Pop"
Okay, how many instruments are used in the song "Baby"?
select count ( distinct instrument ) from instruments as t1 join songs as t2 on t1.songid = t2.songid where title = "Baby"