Sub-query as function argument

Is it possible to execute a SELECT query as an argument to a function?

Example:

SELECT my_func('Sample', NULL, SELECT MIN(year) FROM audio);

In my particular case, my_func inserts columns into another table; I wish to 
use values from another table as the arguments.  The interior SELECT will 
return only a single value; perhaps it needs to be wrapped in another 
function?

TIA.
Mike.

-- 
Michael Burke
michael@engtech.ca