There is no set person who is responsible for maintaining a church organ. However, one can assume that the church organist, the reverend or janitorial staff maintains the church organ. It is different for every church and there is no definite answer.
The church organ
organ loft
a cylinder organ work
A church organ
I did!
A synonym for calliope is organ or church/steam organ.
Church
He plays the organ in the church choir.
The New Church Organ - 1912 was released on: USA: 6 August 1912
Church organ and Digital organs
Buddhism has no parallel to the church organ, it does not hold any bodily organ to be especially important, it has no offical publication (organ) to publish its views. Therefor there is no organ for Buddhism.