Well i learned after the Jam that it is actually a Problem of the Engine it self that the sound can get all glitchy in the html5 Version.
so hewre is a funfact it was actualy planned to have visuel novel parts but the story script wasnt finished. The logic and all is there to be a Visual Novel player but without a story it was no use.
Since we had an a and b side of a track the idea arised use aa switch mechanic between two characters ^^ and the pictures on the right were indeed basically used to show them off. Our artist did a realy great work but mostly for the now cut VN part. so we reused the Art as a Health indicator ^^