How many christmas albums were released in 2004?
album refers to releaseType; groupYear = 2004; tag = 'christmas';
SELECT COUNT(T1.id) FROM torrents AS T1 INNER JOIN tags AS T2 ON T1.id = T2.id WHERE T2.tag = 'christmas' AND T1.groupYear = 2004 AND T1.releaseType LIKE 'album'
database name:db_id music_tracker
torrents table torrents Cols: groupName dtype text, totalSnatched dtype integer, artist dtype text, groupYear dtype integer, releaseType dtype text, groupId dtype integer, id dtype integer, 
tags table tags Cols: index dtype integer, id dtype integer, tag dtype text, 
