Problems of the philosophy of music may be divided into three domain: ontological, epistemological and axiological one. In the ontological domain, the ontological status of such objects as sounds and wholes composed of them, especially of musical compositions, is a leading problem. In the epistemological domain, the problem of how to obtain the adequate cognition of music plays a similar role. Finely, in the axiological domain, one finds the problem of what is the general value of musical composition which is based on partial values of different kinds as a crucial problem. In the paper, I analyze these problems from the point of view of traditional music and describe how the perspective changes if we take new music into considerations.Probl...