In a long meter hymn, a singer - they call it 'lays out a line.' And then the whole church joins in in repeating that line. And they form a wall of harmony so tight, you can't wedge a pin between it.

In a long meter hymn, a singer - they call it 'lays out a line.' And then the whole church joins in in repeating that line. And they form a wall of harmony so tight, you can't wedge a pin between it.