Question: Which Label was cataloged as ALCA-9013?
SQL: SELECT "Label" FROM "2-13071896-2" WHERE "Catalog" = 'ALCA-9013';

Question: Which Catalog was formated as a CD under the label Alfa Records?
SQL: SELECT "Catalog" FROM "2-13071896-2" WHERE "Label" = 'Alfa Records' AND "Format" = 'CD';