Improv over the hymn 'Jerusalem the Golden' (text by Bernard of Cluny, translated and edited). The tune is known as Holst's Jupiter, but it actually is derived from a British folk tune called 'Thaxted'.

1 Jerusalem the golden,
With milk and honey blest—
The sight of it refreshes
The weary and oppressed:
I know not, oh, I know not
What joys await us there,
What radiancy of glory,
What bliss beyond compare:
To sing the hymn unending
With all the martyr throng,
Amidst the halls of Zion
Resounding full with song.

2 Oh, sweet and blessed country,
The home of God’s elect!
Oh, sweet and blessed country
That eager hearts expect,
Where they who with their leader
Have conquered in the fight
Forever and forever
Are clad in robes of white.
Jesus in mercy bring us
To that dear land of rest
Where sings the host of heaven
Your glorious name to bless.

3 The Christ is ever with them;
The daylight is serene.
The pastures of the blessed
Are ever rich and green.
There is the throne of David;
And there from care released,
The shout of them that triumph,
The song of them that feast.
To God enthroned in glory
The Church’s voices blend,
The Lamb forever blessed,
The Light that knows no end.