Planctus de obitu Karoli

The Planctus (de obitu) Karoli ("Lament [on the Death] of Charlemagne"), also known by its incipit A solis ortu (usque ad occidua) ("From the rising of the sun [to the setting]"), is an anonymous medieval Latin planctus eulogising Charlemagne, written in accented verse by a monk of Bobbio shortly after his subject's death in 814. It is generally considered the earliest surviving planctus, thought its melody is written in tenth-century neumes, one of the earliest surviving examples of this sort of musical notation. The poem has been translated into English by Peter Godman.