Three ways I see to resolve the identified issue:
Modify your admin/includes/modules/product_music/collect_info.php file to remove the set field length command.
Add an observer to account for this field/fieldtype.
Modify includes/classes/db/mysql/query_factory.php to account for that field type to return the size applicable for that datatype with the possibility that it might be different in different environments. (Last part started because I haven't researched if the aforementioned large size is uniform across all associated environments.)

Only the last is likely to lead to request of a PR against the code.