2021. A song-book Szczeble do nieba by T.T. Klonowski – is an example of a set of Christmas songs for a teacher, an organist, a conductor, an editor, a composer and a collector of a Polish folk music and a register of Christmas songs used in modern schoolbooks. Muzyka. Historia. Teoria. Edukacja. 11 (Dec. 2021), 43–68. DOI:https://doi.org/10.34767/MHTE.2021.01.02.