hebsan app for iPhone and iPad

In this app youll find all texts of the Gregorian Chants, which are sung at Sundays and Feats (the Proper), as well as the music sheets and texts on them, with their translations in French and German.
Also included are all the music sheets and texts for singing the Offices of the Holy Week in Gregorian Chant, with translations in French and German.. Only the Horae Majores (Ad Laudes et Ad Vesperas) and the Horae Minores (Ad Tertiam, Ad Sextam et Ad Nonam) are published.
First Office is the 1st Vespers of Domenica in Palmis and it goes through the Compline of Eastern.