Dr Hornby was a BoB Lecturer in 2010 - she brought her choir along to demonstrate Gregorian Chant!

Her main research focus is medieval liturgical chant. She has particular interests in questions of transmission, orality, and the relationship between words and music in the Middle Ages. She is currently working on Old Hispanic chant, the repertoire sung in medieval Iberia until the 11th century. Because it is preserved only in non-pitch-readable notation, almost none of the chants can be transcribed and performed today. Despite this, the repertoire still offers us a glimpse of a sophisticated early medieval theological and musical culture.