The hymn book Galata Waaqayyoo contains 329 songs:
Source: Ritter collection
The hymnal is also available as an App (Google Play):
Galata Waaqayyoo
(by Waktola Merdassa)
Video
hymn no. 22 [Gammadi gammadi]:
hymn no. 66 [Nu maari yaa uumaa keenya nu gargaari]:
no longer available
Cross-reference
ยป See overview of Oromo hymns (work in progress)