Ok, I am a little confused on ceremony music. I am having my ceremony in a Catholic church (not sure if we are having a full Mass, might skip Eucharist). I have been playing with the idea of a string duo/trio and trumpeter but I am not sure if I NEED an organist and or vocalist in addition. The church allows outside music so thats not an issue. I am assuming the vocalist is not necessary but is an organ needed for the Mass or can the others (strings/trumpet) do it on their own? I want to come up with a good combo that fits in my budget. If I went with strings,say a duo or trio, do they know parts of the Mass and can a vocalist go with them without the organ? Is the music loud enough without an organ for a medium size church with about 150 pp?Thanks, Lauren -->