'Melody' in the Bible

Speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord;

Let the [spoken] word of Christ have its home within you [dwelling in your heart and mind—permeating every aspect of your being] as you teach [spiritual things] and admonish and train one another with all wisdom, singing psalms and hymns and spiritual songs with thankfulness in your hearts to God.