View into an Overtone Singer

“Freude schöner Götterfunken“ (Ode to Joy) in overtone singing style by Wolfgang Saus. More information: What you see in this amazing dynamic MRI (MRT) is the tongue movement building up double resonances along the melody line of Beethoven’s “Ode to Joy“. Overtone singing is based on bringing together the second and third resonance frequency of the vocal trakt (also referred to as “formants“) on one frequency to enhance the loudness of a single overtone in the vocal sound spectrum.