Zihaf Impact on music Activators of Hashu Lines of Kurdish classical poetry

The relation between the duration of time spend on the foot prosodies of Kurdish Classic poems and music is a direct relation, so any increase and decrease in the time ,due to prosody rules, will create upset, slowdown in rhythm and music of a line in a poem(verse). The change in time depends on a set of rules. These rules in the science of poetic meters (prosody) are called prosody changes and this paper will look at examples found in Zihaf and Ellals. It will discuss the change in the duration of time spent on foot prosodies and consists of an introduction, two parts and a conclusion. In the first part, prosody as a concept has been outlined. The number of foots, essentials of prosody, number of syllables, and arrangements of long and short foot prosody syllables are discussed. Furthermore, a short summary is provided on Zihaf and Ellals as well as their impacts. Moreover, by using “prat,” a software program to measure sound, after recording ten different readings and saving them in ten sound format files, the program managed to scientifically read the duration of time spent on the foots in addition to taking  pictures of all essentials, Kurdish classic foots and high and low sound waves. In the second section of this article, the effects of types of Zihaf (Khubn, Tae, Qabz and kaf) and bauble Zihaf on the duration of time spend on foot prosody and their effect on the high and low of sound waves, slowing down of rhythm and music of foots are discussed.