Towards this aim, a song repertoire has been formed by the researcher, experimental and control groups have been specified and work has been done with the experimental group for 12 weeks. A pre test and a final test has been applied to the experimental and control groups before and after practice with the use of a “musical skills measuring device” prepared by the researcher. It has been benefited from the SPSS 13.0 packet program for the statistical solutions of the data gathered as part of the main aim of the research and main problem. According to the data gained from the research results, it has been observed that the activities performed in music education with the song repertoire prepared and applied by the researcher have created a positive effect on the musical development of 6 year old children.