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Astrorum altitudinem totamque poli aciemThree-voice anonymous cantilena SourcesLondon: British Library, Additional 38651, fol. 2 (3/3) (fragments).LiteratureBOWERS, Roger. 'Cambridge, Fitzwilliam Museum, MS 47-1980' [in] 'New sources of English thirteenth- and fourteenth-century polyphony', compiled by P. Lefferts and M. Bent, Early Music History, 2 (1982), p. 294 briefly.   | 
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