Orlando di Lasso's (composer) works are almost entirely vocal. ***There are more than 2,000 songs. Among them are masses. Motet. Hymns and secular musical compositions. Like an Italian pastoral. France's Chanson, Germany's Lieder, etc. Russo’s work is breezy and accessible. Full of human touch. The famous work "I Am Poor" interweaves vocals with instrumental accompaniment. echo each other. It can be said to be the most wonderful song. Russo's works are very interesting in life. His humor and personality are often reflected in his lyrics. The lyrics in "I'm a poor man" goes like this; I'm a poor man. What did you do? Married a concubine. It would be great if I didn't marry. You can definitely imagine that we argued every day from the table to the bed.

In vocal compositions by Orlando Russo. The a cappella "Echo" is the most widely circulated one. Because of its difficult singing skills and good performance effect, many famous choirs in the world like to sing it. After this song was introduced to our country, it has been translated into Chinese.

When we listen to a choral concert, we sometimes hear an a cappella song called "Echo". The wonderful, harmonious, echoing, and moving sound often makes you feel like you are in the mountains and valleys, and you can experience the joy of dialogue with nature, and your heart will be extremely broad and happy. If you're guessing that this song was written by a modern or recent person, that's a pity. Its author is the sixteenth-century Dutch composer Orlando Russo. He was 240 years earlier than Beethoven, and 150 years earlier than Bach, whom we call the "father of the twelve equal temperaments"!

The a cappella chorus "Echo" was written by Russo in the form of a double four-part chorus unique to Venice, Italy. It is not only an excellent repertoire for concerts, but also a good teaching material for students to practice chorus in music schools.