This template is used for derivative works based on a carol by an unknown songwriter(s). Unlike {{CarolDerivs}}, this template omits the composer's name from the name of the resulting category ‘Pieces based on ‘X’’.
{{Carol2Derivs|1|2|3}}
Variable 2 will replace the text Based on at the beginning of the template's output: "Based on Carol X by Composer Y." Variable 3 allows the option of omitting the composer name altogether by inserting a "0".
