The excerpt that is demonstrated here is most likely to be from a Gregorian chant.
This is the term that is used to refer to the musical lyrics that is from a church which is made up of just one line of vocals and also have a restricted scale. This style was developed during the medieval liturgy period in the European continent.
This type of music is monophonic and a plainchant in nature. It is a sacred song that is used in the Roman Catholic church during their mass.
The scripts from which the song is gotten from is mostly from the scripture. It is named after Gregory the first.
Read more on Gregorian chant here:
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