Simplify the following text for a Grade 7 native English-speaking person.
Original: Following his wish , his own Funeral March in Memory of Rikard Nordraak was played in an orchestration by his friend Johan Halvorsen , who had married Grieg 's niece . In addition , the Funeral March movement from Chopin 's Piano Sonata No. 2 was played .
Simplified: Following his wish , his own funeral march for Rikard Nordraak was played , as well as the funeral march by Frederic Chopin .