This article deals with the accentuation of English phonetic units in a musical context. We aim to establish some relationships between word-stress pattern and melodic interval for the perception of English. The results of a perceptive test, using a voice synthesised by Mbrola, have enabled us to refute the null hypothesis which implies that the perception of words in a musical context is independent of the configuration of word-stress pattern and melodic interval. Thus, disyllabic words with the following structure HL-Sw (High Low-Strong weak) and LH-wS (Low High-weak Strong) are better perceived than the ones with the structure LH-Sw (Low High-Strong weak) and HL-wS (High Low-weak Strong). This experiment suggests, amongst other things, that the musical configuration of acoustic parameters does influence our perception of English phonetic structures.