I am applying for a pre-K assistant position. While being in the process I have to come to learn that there is music and singing involved in teaching. Is there any way that I could maneuver my away around not falling in haram? Is speaking in a sing-song way allowed if there are no musical instruments?

If the music is not “entertainment music,” and it’s the classical/calm type, then there are some Maraje’ who say it’s permissible. But if it’s the haram type of music involved, then there is no workaround (unless you try to not listen to it). As for singing, it is haram and we have many hadiths about that. Request to be exempted from singing.