This bachelor's thesis reviews the use of spoken word in the second half of the 20th century in Czech music compositions with a particular focus on the historical context and the composition work of the author. Mainly the needs of an update of the musical thinking and a recontextualisation of the creative process where the spoken word is used, are stressed in the thesis. The basic problematics discussed by the author is the duality of applying both the semantic nature of text sources and different means of desemantisation in music compositions. The core of the paper summarizes and rationalizes the effort of composers to accomplish desemantisation of a text with the aim of the author to find these elements in Czech avantgarde and postmodern ...