CREATE TABLE table_name_84 (recorded VARCHAR(255), time VARCHAR(255), track VARCHAR(255), release_date VARCHAR(255))
Tell me the recorded for time of 2:50 and released date of 6/6/77 with track more than 20
    
SQL: SELECT recorded FROM table_name_84 WHERE track > 20 AND release_date = "6/6/77" AND time = "2:50"