This issue sees the last Liturgical chant bibliography prepared by Dr Günther Michael Paucker. Having inherited this position from Peter Jeffery in 1996, he has produced, year after year, a total of twenty-one bibliographies, all with an admirably comprehensive coverage of studies on chant across the full range of languages. The journal could not have imagined a more meticulous, thorough and loyal editor. We remain truly thankful to him for all the Herculean efforts he has put into his Liturgical chant bibliographies from 1997 to 2017. They have been tremendously useful to chant scholars and will remain a lasting monument to his generosity of spirit.