The Messiah was written in 1741 by the German composer Georg Friedrich Handel. The Messiah was represented in London in 1743 . King George II and all the London aristocracy, at the first notes of the choir, stood up for the entire duration of the performance: and this custom has been preserved and still today everyone stands up at each performance of the Messiah. Handel used polyphony with great skill to create an effect of grandeur. The Messiah represents a glorification of Jesus Christ and is divided into two parts and includes 52 pieces, including overture, arias, recitatives and choirs.
The second part deals with the death and resurrection of Christ and ends precisely with the enthusiastic chorus of the Hallelujah . The choir that follows the Hallelujah is divided into sopranos, altos, tenders and basses , with orchestral accompaniment. The initial theme, expressed by 8 quaternary measures, is an explosion of joy for the resurrection of Jesus and is followed in unison by the 4 voices. Here’s the link to listen to the famous Hallelujah from The Messiah: https://www.youtube.com/watch?v=pr6gLpQ-wDc