ceremony music

so I didn't think I wanted any live musicians for the ceremony I would just have the organist the church provides and now I am doubting this.

My sister had a string quartet, so did my cousin so I don't want that. I was thinking of a harpist or possibly just a violinist solo.

Price is a big concern I have no idea what this will go for anyone with info I would really appreciate it. Feel free to FM if you feel more comfortable.

Thanks