Always sing in the car. No radio going or anything. Just me and my voice. It's always very soft, and always old songs and I don't start singing until we get onto the highway, usually after we cross the bridge at the mouth of the river that runs into the ocean. Not only that but I'm thinking about the notes and how they go together and any oddities and if it can go right into another song without missing a beat, I tell my husband about it. I think he pretends to be interested. One song that I noticed this with was Jim Reeves, Missing You can go right into Beyond the reef.