Table schema:
CREATE TABLE table_name_27 (bronze_medals INTEGER, total_medals VARCHAR, gold_medals VARCHAR, ensemble VARCHAR)

Question: What is the lowest amount of bronze medals won by Music City Mystique where they won more than 3 gold medals and less than 15 total medals?
SQL: SELECT MIN(bronze_medals) FROM table_name_27 WHERE gold_medals > 3 AND ensemble = "music city mystique" AND total_medals < 15