Allen Otte was a co-founder of the historic Blackearth Percussion Group and of Percussion Group Cincinnati, and toured for decades throughout the world performing new and experimental music created for him and his colleagues.  Otte regularly presents his own creative work—solo and collaborative performances (The Innocents Project/John Lane; the improvisation trio Vaster Than Empires), often in residencies centered around the theme of performing social justice.  He is Professor Emeritus, University of Cincinnati, and in 2017 was inducted into the International Percussion Arts Society Hall of Fame. He has appeared with Trobar since 2018. 


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Sian Ricketts (vocals, winds) enjoys a multi-faceted career as a singer and period woodwinds specialist. She performs medieval, Renaissance and baroque chamber music and orchestral repertoire with ensembles such as Bach Collegium Fort Wayne (IN), Apollo’s Fire (OH), Dallas Bach Society, Piffaro (PA), Forgotten Clefs (VA), and Labyrinth Baroque (NY). Sian is also a co-founding member and co-managing director of the medieval ensemble Alkemie. In addition to her interest in early music, Sian also regularly performs 21st-century repertoire as both an instrumentalist and singer, and has collaborated with composers such as Elliot Cole, Fiona Gillespie, Jonathan Dawe, and Gregory Spears. Sian was a Visiting Medieval Fellow at Fordham University from 2019-2020, and is co-director of Fordham University's Collegium ensemble. Sian holds a D.M.A. in historical performance practice from Case Western Reserve University with concentrations in voice and baroque oboe.

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Tis Kaoru Zamler-Carhart (they/them) is a singer, writer, medievalist, and composer/designer. They are the solo vocalist on five recent albums of contemporary music: “Consolation” by Samn Johnson, “Empty Blank Perfect” by Andrew Noseworthy, “Forsaken Tunes” by Kyle Tieman-Strauss, “Mots Ricos” with Charlie Rauh and Jesse Greenberg, “Minnezang” with Niccolo Seligmann, and the director of two albums of medieval music: “I Frammenti Ascolani” and “Veneto 1440”. Their first book "The Goths & Other Stories" is published by Punctum Books. Their second book "The Diary of Anna Comnena, or the Very Political Adventures of a Transgender Byzantine Princess in African Elevators" is forthcoming. Tis has taught medieval literature, music history, and speculative design at The New School in New York, and medieval music and Latin at the Royal Conservatoire in The Hague. They hold various graduate degrees from Stanford and the University of London, and their own music has been performed in a number of countries.