I'm wondering how to locate chants? For example, in the Mundelein Psalter, the hymn O Blest Creator of the Light is set to a chant I don't recognize. Is it from the Liber Hymnarius? Or what? Is there an index or search that makes it possible to find chants in situations like this?
Thanks that is exactly what I was looking for! Unfortunately, the chant I'm looking for right now wasn't in their database. I have the music, so I don't have to rely on my ear. I'll attach the music to see if anyone recognizes it.
It is one of the melodies for Lucis Creator optime, the hymn of which "O Blest Creator" is a translation. You'll find it in the Liber Usualis p 257 (following the same text to a different melody). The Liber Hymnarius does have Lucis Creator, but with the other melody. The Antiphonale Monasticum has the text to the first melody and to a different one, but not to the one that you offer.
The text is traditionally a Sunday II Vespers hymn. In the post-Vatican II office it is for Sunday Vespers, weeks I & III.
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