Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_27711947_1 ( artist VARCHAR, choreographer VARCHAR, rating VARCHAR )

### Question ###
List all artists with choreographer Marcos Aguirre and a simple rating.

### Accurate SQL ###

SELECT artist FROM table_27711947_1 WHERE choreographer = "Marcos Aguirre" AND rating = "Simple"