What PMB and Sean have said, in relation to two different sorts of music, is very true for me too, in the (mostly English) sessions I go to. When it goes well, it can be quite magical to share the music with others - sometimes leading, sometimes following, sometimes just listening, and sometimes all piling in together to play a tune we love.

When you play in a session you get full surround-sound, being totally immersed in the music. With an instrument,you feel the music through your body as well as hearing it with your ears - this is one thing playing has in common with singing, where you body becomes the instrument.

Playing for dancing is different; the main point there is to provide the sort of music that the dancers want. When dance music is played at sessions, it's nice (I think) if the music keeps that connection and suggests the dance to the listeners, even if no one is dancing.

Comparing playing with singing: I think the main difference is that a singer is communicating in a much more direct and personal way with the listeners than most tune-players. I sing too, and I like people to listen when I sing, but I prefer them not to listen too actively when I'm playing - I'd really rather play in the background so that people can just let the music seep into their senses.

As for dancing, there's a big difference between the "display" dances (morris etc) and social dancing. Display dancing is done to entertain others, and the costume is part of the show. Social dancing is, to me, done mainly for one's own enjoyment - again, there' a sharing and bonding that takes place as a result of moving together to the rhythm, and the physical contact. To me, the dress code isn't very important here, although people generally feel more at ease if they think they're looking good while they dance.

Very interesting question, George, and I'm sure there's still much to be said.

Marje