In my country we have a refrain related to the song "I sing well, but it sounds bad" in my opinion when it comes to ministering praises and singing in the services it is necessary to do it with exelience for God the creator of all things, everything they do, do it willingly, as if they were serving the Lord and not men.Colosenses 3:23, not by this I mean, that we should refrain from singing to God if we are not good at singing we praise the Lord so Listen badly in your intimacy with him, but do it with the understanding, What should I do then? Well pray with the spirit, but also with the understanding; to sing with the spirit, but also with the understanding.1 Corinthians 14:15