I love finding the "lightbulb moments" when a student suddenly understands a concept. These concepts are the knowledge behind the music we all love. Teaching "an instrument" is important and necessary (and will definitely be a large part of what we do), but understanding music on a larger scale helps us to analyze great music and then to create our own great music. I enjoy seeing a student get excited about suddenly understanding a new concept, or nailing a new technique, or sharing their own compositions that they have created with their newly gained knowledge.