As air penetrates through a rotating circular disc with holes, a series of distinctive sounds are unexpectedly elicited. Initially, we hypothesized that the origin of these sounds was merely the result of the air being segmented into a set of compression waves by the disc, which subsequently formed the basis for our primary investigation. Nonetheless, despite utilizing acoustic foams and Fourier analysis, we discovered that the complexity of the circumstances transcended our previous assumptions. Numerous unexplained phenomena warranted further investigation, encompassing the disproportionately small relative amplitude of the fundamental frequency compared to the prevalence of overtones, as well as the presence of noises originating from sources independent of motors and valves. Consequently, we systematically amended our research methods and sought further theoretical explanations and backing. As a case in point, not only did we employ the COMSOL Multiphysics Engine for comprehensive simulation, but we also extensively referenced various literature and theories. Throughout this process of exploration and advancement, we ultimately observed an apparent group of harmonics, where the fundamental frequency was equivalent to the number of perforations multiplied by the rotational frequency; the amplitude of the nth harmonic gradually decreased as n increased. In summation, established from the harmonic model mentioned in "Siren Harmonics and a Pure Tone Siren" (E. A. Milne, R. H. Fowler, 1921), we rendered both qualitative and quantitative explanations for the observed harmonic sequences. Besides, by conducting thorough simulations via COMSOL, we eventually correlated other empirical noises with edge tones.