SELECT COUNT(*) FROM MEDIATYPE AS T1 JOIN TRACK AS T2 ON T1.MediaTypeId  =  T2.MediaTypeId WHERE T1.Name  =  "AAC audio file"
How many tracks are in the AAC audio file media type?
SELECT COUNT ( * ) FROM MEDIATYPE AS T1 JOIN TRACK AS T2 ON T1.MediaTypeId = T2.MediaTypeId WHERE T1.Name = `` AAC audio file ''
select count ( * ) from mediatype as t1 join track as t2 on t1 . mediatypeid = t2 . mediatypeid where t1 . name = value
How many tracks are in the AAC audio file media type ?