In worship, I believe music skills are for equipping, not for exhibition. Also, his skills, as he improves them, will become so congruous with the worship that it blends with the people rather than interrupts them. The invisible leader assumes that people came to worship and does not tell them that they should or need to convince them that they can. He beckons and does not shove. He invites, not threatens.
Presence has several parts to it.
Resonance is the ability to flow with the culture in which you are leading worship. A leader with resonance is as aware of the people and their needs as he is of his own music. Consequently, he can think of the need to reduce their anxiety about themselves and what is going on so that they can focus their attention on God. The good leader knows that his job is to become invisible. He is merely a bridge carrying the attention of the people to God and anything that interrupts that attention is a roadblock thrown in their way.