As a general rule of thumb, a pipe organ is tuned twice a year, either at the change of seasons from hot to cold, and cold to hot, or before Easter and before Christmas. The cost of this biannual tuning will vary depending on the size of the pipe organ and area in which the pipe organ is located. In general, tuning and maintenance will require roughly one hour for every six stop in the organ. Hourly rates will vary from $85.00 per hour to $125.00 per hour.