However, a later document (1630) states that Morago had retired to a Franciscan monastery in Viseu (Convento de Orgens) and died there.
The musicologist Manuel Joaquim considered his motet Oculi mei "genial and worthy of the renown of Palestrina's O vos omnes, or Hoc die".
The British composer Ivan Moody wrote: ...what causes special impact in the music of Morago is the usage of the dissonance, and (...) an interest in antiphonary effects.
Motets such as Oculi mei, of ambiguous key and intercalated with numberless diminished fourths, demonstrate perfectly the expressiveness of this harmonic audacity.
The Fundação Calouste Gulbenkian published most of them in the book Obras de Música Religiosa (Portugaliae Musica IV, 1961).