A child is a being who learns and develops in interaction with the environment. In order for the environment to support child development, it is necessary to respond timely to the child's needs. It is also important that the environment is stimulating and enables the child to explore the world in a unique way. Speech is an important segment in every man's life, so also the child. One of the possibilities of encouraging children's speech development is music. Music and speech are largely related to phenomena. A child of the earliest age develops their musical and communicative abilities that are intertwined, and we can say that music is stimulating for speech development but at the same time the speech is a stimulating for music development. This paper provides a concise overview of the theory of children's language development and the phases in which the child is dominated by language. In this paper, special attention is paid to the importance of the influence of the environment on the overall development of children, and also the speech, and the values of the spoken language. There is also talk of music, its importance in the child's life, and encouragement for the child's speech development. By looking at the literature, it can be said that there is a close link between the development of the child's musical abilities and speech development. The spoken language values contain both sound and rhythmic features as well as basic elements of music. Some music activities are also described in this paper and are suitable for educational work with children of early and pre-school age.