I. In nativitate Domini (Christmas): Responsorium 1: Versus G I. In nativitate Domini (Christmas): Responsorium 1a Versus ... I. In nativitate Domini (Christmas): Responsorium 1b Gloria ... I. In nativitate Domini (Christmas): Responsorium 2 Versus ... I. In nativitate Domini (Christmas): Responsorium 3a ... I. In nativitate Domini (Christmas): Responsorium 3b Gloria ... I. In nativitate Domini (Christmas): Responsorium 4 Versus ... I. In nativitate Domini (Christmas): Responsorium 5 Versus ... I. In nativitate Domini (Christmas): Responsorium 6a ... I. In nativitate Domini (Christmas): Responsorium 6b Gloria ... I. In nativitate Domini (Christmas): Responsorium 7 Versus ... I. In nativitate Domini (Christmas): Responsorium 8a ... I. In nativitate Domini (Christmas): Responsorium 8b Gloria ...