A memorial service is a ceremony for memorializing someone who has died that takes place after the body has been buried or cremated. Memorial services can take place any time after the death, from a week to a year. There is no formal structure for a memorial service. As with a traditional funeral service, people may participate in different ways, including prayers and readings, singing songs or playing music or sharing memories of the person who died. The ceremony may be officiated by a rabbi, a family member or friend and can be held at any time that is convenient for you.