Listen to IV. Aria. Sein Allmacht zu ergründen (Alto, Tenore) online. IV. Aria. Sein Allmacht zu ergründen (Alto, Tenore) is a German language song and is sung by Nico van der Meel, Sytse Buwalda, Holland Boys Choir, Netherlands Bach Collegium and Pieter Jan Leusink. IV. Aria. Sein Allmacht zu ergründen (Alto, Tenore), from the album J.S. Bach: Complete Sacred Cantatas Vol. 07, BWV 121-140, was released in the year 2013. The duration of the song is 7:06. Download German songs online from JioSaavn.