NAG/DAGA 2009 - Rotterdam Reconstructing the Lituus: A Reassessment of Impedance, Harmonicity, and Playability A. G. Apostoli1,S.M.Logie2,A.Myers3,J.A.Kemp4,J.P.Chick5,andA.C.P.Braden6 1 School of Physics and Astronomy, University of Edinburgh, United Kingdom, Email:
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[email protected] Introduction studies included theoretically modelling the fiscorn from measurements of the bore profile, using BIES to calculate J. S. Bach’s evocative funeral motet ‘O Jesu Christ, the theoretical input impedance curves, measuring the meins Lebens Licht’ (BWV 118), appearing in two ver- input impedance curves using the Brass Instrument sions, was thought to have first been performed in 1736-7. Analysis System (BIAS) designed by scientists at the On inspection the first version of Bach’s score calls for Institut f¨ur Wiener Klangstil, Vienna[3], and finally four voices, cornett, three trombones, and two litui, and conducting a brief playing test using two experienced the second version for four voices, strings, bass continuo, brass instrument players.