Giving dancers notes, is probably the most overused, misused, lazy and abused working tool. it's a simplistic way to gain and maintain authority, and it reduces dancers into execution machines. I think that if a coherent choreographic system is in place, it will naturally guid the dancers, without stripping them down from their individuality and without dismantling their power position in the situation. I find the most effective note to be ' it's not clear, try again, or try something different.