How many songs appear in studio albums?
SELECT count(DISTINCT T3.title) FROM albums AS T1 JOIN tracklists AS T2 ON T1.aid  =  T2.albumid JOIN songs AS T3 ON T2.songid  =  T3.songid WHERE t1.type  =  "Studio"
SELECT count(DISTINCT T3.title) FROM albums AS T1 JOIN tracklists AS T2 ON T1.aid  =  T2.albumid JOIN songs AS T3 ON T2.songid  =  T3.songid WHERE t1.type  =  "Studio"
[{'count(DISTINCT T3.title)': 0}]