INCORPORATING FEATURES OF DISTRIBUTION AND PROGRESSION FOR AUTOMATIC MAKAM CLASSIFICATION

Automatic classification of makams from symbolic data is a rarely studied topic. In this paper, first a review of an n-gram based approach is presented using various repre-sentations of the symbolic data. While a high degree of precision can be obtained, confusion happens mainly for makams using (almost) the same scale and pitch hierar-chy but differ in overall melodic progression, seyir. To further improve the system, first n-gram based classifica-tion is tested for various sections of the piece to take into account a feature of the seyir that melodic progression starts in a certain region of the scale. In a second test, a hierarchical classification structure is designed which uses n-grams and seyir features in different levels to further improve the system. 1