Education methods to be used in the emotional, mental and psychological development of instrument education are of great importance in terms of education process. In this context, the training habits and self-efficacy developments of the students with their instruments can be supported by the accompaniment education process, thus increasing the performance of the instruments. In this context, an experimental method was used in the research by using piano accompaniment training practice, individual instrument training habits and instrument performance self-efficacy belief questionnaires. Pre-test-post-test pattern of this method was preferred. The study was carried out with 9 students who studied flute in Nevsehir Haci Bektas Veli University music department. After the experiment process, the scores of the groups were reached by using T-test. As a result of the research, it was revealed that the application of piano accompaniment in flute education has a positive effect on all sub-dimensions of both questionnaires. In addition, it was determined that students use time in a disciplined and productive way, develop themselves in terms of musicality, see themselves more adequate with the positive progress of the psychological effects of this development, and increase their love for their instrument and desire to work.