"We acknowledge the love and care you have given Michael," he said.
"You could not have done more."
Michael's cello took centre stage as the crowd then sang songs in his honour.
Siblings Anna and Jonathan speak at Michael's funeral. Photo/Stephen Parker
People were in fits of laughter as they heard tales from his siblings of how Michael avoided the housework, had a fiery temper and never liked losing at games.
"He wasn't happy with the title of accompanist, so I let him be my second soloist," his younger sister Anna said.
"He was as special as anyone who is here among us.
"We are all walking breathing miracles and let's not take that for granted."
Mr Pilaar said Michael's life was a picture of what it meant to live.
"He had a wonderful sense for the ridiculous, and he just lived that."
Western Heights High School principal Jim Gemmell. Photo/Stephen Parker
Speakers for the ceremony included Western Heights High School principal Jim Gemmell, music teacher Adam Hague, church youth leader Ed Masters and friend from home school Ash Gower-Rudman.
Mr Gemmell said he separated all musicians into two categories, open door musicians and closed door musicians.
"Michael was an open door musician.
"My office was 10 paces away from the assembly hall where some students would practise.
"With Michael, I never had to close my door."
The Western Heights High School choir perform at the funeral of Michael Pilaar. Photo/Stephen Parker
Western Heights High School choir and jazz band, and the St John's youth band performed music during the ceremony.