Music can be identified as belonging to one of two families – the harmonic and the melodic family. When the melody flows one note at a time, sequentially, one after another, it is called melodic. Indian music belongs to melodic family. Other hand in Western music, which is more based on harmony, which have more notes sounded simultaneously (the chord for instance). The faces of music are many. Intonation, recitation, conversation, chanting and singing are all part of music. Music can be either vocal or instrumental. Vocal music gives more appeal to the listeners because it deals with poetical and lyrical content. On the other hand instrumental music plays pure sound and can be enjoyed. It needs to be experienced and felt. Since there are no lyrics, there are no language barriers between the artist and the listener and that is why instrumental music transcends all barriers.
According to Ustad Amjad Ali Khan, an exponent Sarod vidwan quoted, Musician and listeners of music have been communicating with each other across all barriers through this language from time immemorial. As we use flowers in worship, welcoming, honouring, departure and celebration no matter what our race, origin, religion or language, we similarly arrange musical notes into bouquets or compositions that display all our human feelings and emotions.
As far the research is concerned, mutual exchange between other systems of music need to be described. Based on harmony or melody, there are many music genres in the world such as Western music, Indian music, Persian music, Greek music, Egyptian music, Chinese music, Thai music etc. Scholars opine that the liberal attitude of music scholars in the nation has been responsible for the steady development of the art from early times. It is fact that some features of world music have been absorbed from India and also Indian system by other systems, this is what we say Mutual exchange or the Doctrine of Eclecticism. For example it is interesting to note that European instruments like viola, clarinet, Mandolin, Guitar and Saxophone and Cello are being handled by musicians quite successfully in Indian music system. Introduction of Band and Orchestra are some contribution from other land.