How many singles were released between 1979 and 1981 labeled as "soul"?
releaseType = 'single'; between 1979 and 1981 refers to groupYear between 1979 and 1981; tag = 'soul';
SELECT COUNT(T2.tag) FROM torrents AS T1 INNER JOIN tags AS T2 ON T1.id = T2.id WHERE T2.tag = 'soul' AND T1.groupYear BETWEEN 1979 AND 1981 AND T1.releaseType LIKE 'single'
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, 
