This research on the perception of phonic reality presented in Jan Lechoń’s poem Mochnacki is based on interdisciplinary sound studies, specifically the findings made by musicologists, music critics, music psychologists, psychoacoustcians and literature spcialists. The author perceives the speaking persona as the Schaferean “ear witness” verbalizing his experience in metrical language. In her research on lyrical description of perception, the author takes into account both the response to individual sounds and internal images, which become active when one is listening to music. The perception of phonic reality presentend in the poem reveals the poet’s attitude to not only the art of sound, but also non-literary reality and, above all, to th...