The main theme of The Millennium Bell is the view on the two thousand years after the birth of Jesus of Nazareth through series of single episodes describing important moments in history, as well as different aspects of humanity.

The album is eclectic in style, ranging from majestic choruses and soundtrack-esque orchestral passages through New Age sonic textures and ethnic sounds to strong pulse of electronic percussion.

The track features also strong gospel influences – a hint at the descendants of the African slaves in North America and the culture and music they would establish in the future.

The track, vaguely reminiscent of the contemporary Baroque compositions written by Gian Piero Reverberi for his Rondò Veneziano chamber orchestra, refers four Venetian doges by name – Pietro Polani, Enrico Dandolo, Francesco Donato and Giovanni Delfino.

"Lake Constance", the first fully orchestral track on the album, refers to the age of Romanticism in Europe, movement which evoked spontaneous emotions and feelings, making them the main source of humans' perceiving of the world, instead of rationalism.

Another fully orchestral piece, "Broad Sunlit Uplands" takes its name from one of Winston Churchill's famous speeches, and refers to the beginning of World War II.

To experience what Churchill felt during the days of Operation Sea Lion, Mike Oldfield visited his war room, Blenheim Palace.