In Dulci Jubilo (414.01.optional 2Perc.) In Dulci Jubilo (In Sweet Rejoicing) is a German Christmas carol. Its melody has appeared in various significant historic collections. The first of these was ‘Codex 1305’, a manuscript from Leipzig. Subsequently it appeared in publications in and beyond Germany including those of Michael Praetorius (Germany) and Piae Cantiones (Finland). In England the settings of both J. M. Neale and Robert Pearsall are well known under the title ‘Good Christian Men Rejoice’. Jock McKenzie Jock McKenzie studied trumpet at the Royal Northern College of Music, Manchester where he was a joint recipient of the college’s concerto prize. Since 1987 Jock has based his musical career in Hampshire, working as a freelance trumpeter, conductor, composer, arranger and brass teacher. Currently Jock holds the position of Professional Leader (Brass) for Hampshire Music Service and is the Director of the Hampshire County Youth Band. It is the mix of all of these musical roles that has led to Jock establishing a reputation as a leading creator of brass music resources, particularly in the field of education and brass ensemble music.