The article is devoted to the educational and developmental potential of information and communication technologies for the formation of understanding of music in primary school students at the music lesson. Psychological characteristics of younger school age – inquisitiveness, emotionality, mental activity, immediacy, openness, trustworthiness, their belief in the undeniable authority of the teacher and willingness to fulfill any of his tasks are favorable conditions for affirmation of broad social motives at this age responsibility, understanding of the need for training etc. The possibility of a teacher in music lessons using various computer programs: MIDI, Musical Instruments Digital Interface, Garage Band, FlexiMusic Composer, FL Studio, Finale, Sibelius. The use of modern computer technology in music lessons in primary school makes learning bright, unforgettable, interesting for the student, contributing to the formation of cognitive skills in students, forming an emotional-positive attitude to the arts. After all, the use of information and communication technologies in the classroom increases the level of understanding of music in primary school students. Various and multifaceted psychological and pedagogical tasks of informatization of the educational process in primary school students are highlighted, namely: development of communication skills; correction of mental and emotional states; development of the emotional sphere of the child's personality; formation of selfpresentation skills; setting up an emotionally-supportive atmosphere in the classroom. The use of information and communication technologies in music lessons contributes to the educational and development potential of primary school students to form an understanding of music, namely: motivation; individualization and differentiation; cognitive development of the child; forming a culture of educational activity and information culture. Thus, the problem of educational and development potential of primary school students by means of information and communication technologies does not lose its relevance. The introduction of information and communication technologies into the educational process for forming the understanding of music in primary school students in a music lesson is a complex process that is caused by individual psychological characteristics, personal experience, emotional and sensual sphere. Key words: educational and development potential, information and communication technologies, understanding, primary school students, music lesson.