The purpose of this masters' thesis is to describe the way rock music can be presented in a classical form. The main problem of the paper is the transcription of music parts of tipical rock band instruments into equivalent versions for the string quartet. The complexity of the transcription process is seen in many difficulties with the separation of individual from group sections. Considering the popularity of pop – rock music (hence the name pop music), the thesis is focused on explaining the term and the historical development of this music genre and linking pop – rock music, on the example of the famous group The Beatles, with the most significant form of chamber music – the string quartet. Additionally, the paper contains the string quartet's historical development, description of the main instruments and the most important string techniques, composers and their works. The Beatles' songs were extensively analized in different aspects of musical, harmony, dinamics, agogics, rythm, melody and formal structure to ensure the best possible transcription without the loss of original sound intensity. With classical sound and unusual colors made by string quartet in songs Yesterday, Blackbird, Help!, Eleanor Rigby i Here Comes the Sun, music that is well known is brought to listeners of different music interest in a new light.