Listen to It Ain't Necessarily so (From "Porgy and Bess") online. It Ain't Necessarily so (From "Porgy and Bess") is an Unknown language song and is sung by Countdown Orchestra and Countdown Choir. It Ain't Necessarily so (From "Porgy and Bess"), from the album The Magic of Broadway, Vol. 1, was released in the year 2010. The duration of the song is 2:57. Download Unknown songs online from JioSaavn.