In the bindings of books in the library of the Lutheran Church in Kežmarok, 36 parchment bindings with notation have been preserved. Liturgical manuscripts of the 12th, 14th, and especially 15th centuries were used as an outer wrapping for later books. All of the sources document monophonic liturgical chant the so-called cantus planus. Some of these music materials were transported to Slovakia in their secondary function, hence their binding originated outside the territory of Slovakia and the music sources testify to the musical and liturgical tradition of other regions. Certain of the bindings originated in Slovakia, and manuscripts from the Spiš region, on occasion directly from the town of Kežmarok, were used as suitable parchment material. Palaeographic, liturgical and musicological analysis has indicated either the transfer of music codices from their place of origin and use (manuscripts from Bohemia, Germany, and even Belgium) or the local specificities of scriptorial workshops in Slovakia (Spiš manuscripts).