Do you want to be proven right or do you want unity? Sometimes we have to choose our battles wisely. In the scope of the whole, does it really matter whether the guy plays the organ on the Sunday you're out or not. We all have our preferences. When I'm out of town, I'm only responsible to make sure that the music is covered. I don't want to become so controlling that I'm telling people which instruments to use and what songs to play. I want those filling in to be as comfortable as possible, especially since they are doing me a favor by covering my responsibilities while I'm out.
I personally think you should let it go. You can demand the organ to be taken out and test this person's spirit, which I think God does not us, but in doing so you may risk not having a musician to cover the service that day. I live by a motto: "The whole is more important than the individual parts." For me, that means that in this case the music being covered for the whole church is more important than your personal feelings about the organ being in the sanctuary for one service that you won't be in anyway.
Ultimately, never get on the trustees' bad side. They really do carry weight with pastors. If you buck them too much, you may not have a job, regardless of how much the pastor likes you. :-)
Pastor Starkovich
