I'm always curious when people describe it as "calm" and "relaxing".
O Fortuna (Orff)
Mars, Bringer of War (Holst)
Agnus Dei (Barber)
Dance of the Furies (Gluck)
Ride of the Valkyries (Wagner)
Confutatis Maledictis (Mozart)
Confutatis maledictis
Flammis acribus addictis,
Voca me cum benedictus.
Oro supplex et acclinis,
Cor contritum quasi cinis,
Gere curam mei finis.
When the damned are confounded
and consigned to keen flames,
count me with the blessed.
I pray, suppliant and kneeling,
a heart as contrite as ashes;
take thou my ending into thy care.