I have to disagree. I have listened to just a choir singing (the parts of the service that change from week to week, it seems no one sings but the choir), and I have listened to much of the congregation sing (at times it seems all of it, for certain things, especially "Christ is risen from the dead, trampling down death by death..."), and I have to say that I much prefer the entire congregation singing. Not only does it show that the congregation is not simply a passive observor of the liturgy (which if I am not mistaken means "work of the people" and so I really don't know why someone would prefer that the mass of the people be silent and not work) but is an active and important member of the Body of Christ; but it also creates a resounding and triumphant sounding chorus of the Lord. When everyone joins in together to sing praises to God, it creates an atmosphere of unity, but also of triumph and of joy, something that the Church should have because while the Church on Earth is still the Church Militant, we not only have the Church Triumphant present at every liturgy, but the forces of the evil one are waging a war we already know the outcome of. We already know that the Church Militant will one day be the Church Triumphant, we already know that the powers of death and sin and Satan have lost their sting, and have lost their authority, and so how can we not all shout for joy at the name of the Lord? How can we not all sing his praises?