An application that facilitates mastering polyphonic singing
in a four-voice mixed choir.

Do you sing in a choir? Or maybe you want to feel like a member of such a group?
Learn to sing a carol in one of the four voices of a mixed choir. First, listen to the melody of all the voices sounding together. Then turn off the voices you won't need to learn (e.g. soprano, alto, bass), let it play only (e.g. tenor).

If you master the melody in your voice (e.g. tenor) - turn off your voice and turn on the other voices. In this way, sing the melody of the voice (e.g. Tenor) by yourself, tuning in to the other three voices (e.g. Soprano, Alt, Bass).