Psalm 134, Greek Orthodox Byzantine Chant Link

Psalm 134 , also known as Psalm 133 in the Septuagint, is a central, joyous part of the Polyeleos sung during Greek Orthodox Matins to praise God and receive a blessing, often in the Plagal 1st Mode. It calls for believers to bless the Lord and is frequently performed with an "Alleluia" refrain in a meditative, traditional chant style.