1. 1st – 3rd centuriesApostolic and Early ChurchNew Testament canticles, earliest Christological hymns, and Paschal fragments in Greek and Syriac.

    Apostolic and Early Church spans the 1st through 3rd centuries of twenty-one.

    Atlas ready.
  2. 4th – 7th centuriesPatristic and ConciliarNicene doxology, Byzantine, Syriac, Coptic, Armenian, Ethiopian and Latin lineages take shape.

    Patristic and Conciliar spans the 4th through 7th centuries of twenty-one.

    Atlas ready.
  3. 8th – 15th centuriesMedieval and MonasticPlainsong, monastic offices, Byzantine chant, mystical poetry, and early vernacular sacred song.

    Medieval and Monastic spans the 8th through 15th centuries of twenty-one.

    Atlas ready.
  4. 16th – 17th centuriesReformation and ConfessionalLutheran chorale, metrical psalmody, Anglican hymnody, and Catholic devotional renewal.

    Reformation and Confessional spans the 16th through 17th centuries of twenty-one.

    Atlas ready.
  5. 18th – 19th centuriesAwakening, Mission, and SpiritualsMethodist hymnody, revival song, African American spirituals, and global missionary hymnody.

    Awakening, Mission, and Spirituals spans the 18th through 19th centuries of twenty-one.

    Atlas ready.
  6. 20th centuryModern Global GospelBlack gospel, Pentecostal worship, African Independent Church music, and worldwide praise movements.

    Modern Global Gospel spans the 20th century of twenty-one.

    Atlas ready.
  7. L21st centuryLiving Global WorshipMultilingual, diaspora, and cross-cultural worship — including new arrangements of inherited texts.

    Living Global Worship spans the 21st century of twenty-one.

    The living catalog is real. Atlas notes stay editorial.