Although the effect of music on labour pain during latent phase in our study is consistent with previous studies there is no enough evidence to support the effect of music on labour pain during active phase. Possible explanations for the lack consensus in finding about the efficacy of music could be the music selected for our study was mainly relaxing music with a slow tempo. This type of music collections in ous study is ineffective applied in the active phase of labour when contractions are more intense and more painful, it is possible that its auditory cue did not synchronise the women's rhythmic of short and rapid breathing. The music selected two previous studies use different tempo according to labour progress (Hanser et al. 1983 Browning 2000). Richardson (1984) first point out that the women concentrated less on their surroundings and more on their bodies during the active phase. As one participant said, "I could not hear the music when the pain was worse." Thus, music therapy may not reduce the pain perception of primiparas during the active phase of labour Durham and Collins (1986) stated that during active labour, women with more rapid chest breathing need more rapid music with tempo.