Listen to IV. Choral (Coro). Zwingt die Saiten in Cythara online. IV. Choral (Coro). Zwingt die Saiten in Cythara is an Italian language song and is sung by Holland Boys Choir and Netherlands Bach Collegium & Pieter Jan Leusink. IV. Choral (Coro). Zwingt die Saiten in Cythara, from the album A Bach Christmas, was released in the year 2015. The duration of the song is 1:04. Download Italian songs online from JioSaavn.