The trumpeters with their trumpets take their places, and the psaltery and the harp are brought forth.

The timbrel, the stringed instruments, the organ, the cymbals, and every conceivable instrument of praise is in the hands of the heavenly host.
There is a breathless silence.

Then the trumpeters peal forth their paeans of praise, and all the other players and singers of the heavenly hosts join in.

This entrancing music is caught up by the multitudes of earth and wafted back to heaven again (because communication has been established between the perfect men and the perfect heavenly creatures), until every creature which is in heaven and on earth and under the earth, and such as are in the sea, and all that are in them, are praising God, saying: "Blessing, and honor, and glory, and power, be unto him that sitteth upon the throne, and unto the Lamb for ever and ever".

(Revelation 5:13) Every knee is bowing and every tongue is confessing that Jesus is the Christ, to the glory of God the Father.
Every creature that has breath is now joining in the song.