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_12798 ( "Track" real, "Title" text, "Songwriter(s)" text, "Production credits" text, "Time" text )

### Question ###
Who was the songwriter for Track 4, produced by nigel wright and john smits?

### Accurate SQL ###

SELECT "Songwriter(s)" FROM table_12798 WHERE "Production credits" = 'nigel wright and john smits' AND "Track" = '4'