Infomartsioon Kotka ja Janakkala Püha Laurentsiuse kirikute orelite koopiatest Soomest pärineb plaatide kogumikust Urkurakentamo Martti Porthan Oy Producer Äänilevy Taito 2006 "This three CD collection of music played on organs built by Martti Porthan Organ Builders contains performances by the following Finnish top musicians"