Listen to Exercitia Mythologica for Mixed Chorus a capella (Exercitia Mythologica): V. Echo online. Exercitia Mythologica for Mixed Chorus a capella (Exercitia Mythologica): V. Echo is an English language song and is sung by Prague Philharmonic Choir. Exercitia Mythologica for Mixed Chorus a capella (Exercitia Mythologica): V. Echo, from the album Penderecki / Straugss / Schönberg: Veni Creator, was released in the year 1993. The duration of the song is 1:32. Download English songs online from JioSaavn.