Several studies indicate that music has soothing effects and is effective for reducing stress and anxiety in coronary patients. The effects of stress on the cardiovascular system have also been proven. However, the meanings assigned to music when used during hemodynamic procedures are unknown, as are the meanings of the experience of these procedures. The aim of this research is to understand the senses and feelings of music for patients undergoing hemodynamic procedures, identify and interpret the fantasies and emotions related to, and study the possibility of deploying in hospitals the “Musical Method for Hemodynamic Procedures”, being developed by the author. This research is based on a clinical-qualitative methodology. The sampling method is the theoretical saturation. The semi-structured interview was used in order to obtain data that was submitted to content analysis. The subjects are patients undergoing hemodynamic procedures in hospital SEMPER, Brazil. We conclude that within the experience of listening to music while undergoing catheterisation 100% of the patients claimed they had overcome the experience of stress and felt calm, tranquillity, peace and happiness. Some patients described the music as a companion, as something that diverts their attention from fear, transporting them to an imaginary place, to another dimension. The episodic memory, the capacity to recognize a musical excerpt for which the spatiotemporal context surrounding its former encounter can be recalled, was also important, with surprising results in the case of patients who underwent catheterisation in the presence of music and, later, angioplasty without the presence of music.