And on reflection, I'm able to make them product_type_music but when I go and try and look at them in admin I get the following error:

Warning: reset(): Passed variable is not an array or object in /home/xxxxxx/admin/includes/classes/object_info.php on line 29

Warning: Variable passed to each() is not an array or object in /home/xxxxxx/admin/includes/classes/object_info.php on line 30

And all the fields are blank.

I know this must be related to me changing the default for product type to 2. However, is their a way to import them as product_type_music instead of general? I'm happy for a fix here that will then only let me import as product_type_music and not general, but not sure where to start looking in the easy populate files to do this.