Radio and TV stations popularise Christmas by broadcasting Christmas carols and Christmas songs, including classical music such as the Hallelujah chorus from Handel's The Messiah.
The Prologue is all that precedes the Parode of the chorus; an Episode all that comes in between two whole choral songs; the Exode all that follows after the last choral song.
The Bass Multi-Chorus is designed specifically for bass and lets you morph up to 16 bass chorus voices at the same time to create the lushest bass chorusing ever heard from a bass stompbox.