Dossier about the operas from Season 1995, 1996 y 1997 (historic, stylistic, esthetic and analytical comments), for the Association of Friends of the Opera at Madrid.

Dossier for the course La ópera del Teatro Real (1997-98): comments and plots of 30 operas, including those of the Teatro Real season.

Dossier for the course Cuatro siglos de ópera (1998-99): comments and plots of 30 operas, including those of the Teatro Real season.

Dossier for the course La ópera en su tiempo (1999-2000): comments and plots of 12 operas, including those of the Teatro Real season, and of their 12 music-history moment (chamber and symphonic music).

Dossier for the course Música en escena I: ópera y cine (2000-2001): comments and plots of 12 operas, including those of the Teatro Real season, and of 7 musical films.

Dossier for the course Música en escena II: ópera y cine (2001-2002): comments and plots of 10 operas, including those of the Teatro Real season, and of 2 musical films.

Dossier for the course Música en escena III: ópera y cine (2002-2003): comments and plots of 10 operas, including those of the Teatro Real season, one film and several musical documentaries.