Wolfgang Amadeus Mozart, best known for his concert music and operas, wrote numerous Masses that were performed during the Christmas season. His sacred compositions, such as the Mass in C minor, K. 427 (often referred to as the Spatzenmesse), characterised by intense dramatic power, the Mass in C major, K. 317 (Coronation Mass), with its melodic refinement and solemn character, and the Mass in B-flat major, K. 275 (Missa brevis), which enjoyed great liturgical success, were highly appreciated in Viennese churches. Mozart, through his exceptional ability to combine melodic beauty with spiritual depth, is still considered one of the most significant composers of sacred music.

Alongside Mozart, another great composer of Classical Vienna was Joseph Haydn. As noted by Blankenburg, “Mozart, in a period of great cultural and musical ferment in Vienna, not only expressed his mastery in concert works, but also immersed himself in the world of sacred music, writing Masses that combined musical perfection with profound spirituality” (Blankenburg, A. (1998). Mozart und seine Zeit: Eine Musikgeschichte der Wiener Klassik). Haydn’s Masses, such as the Missa in tempore belli, written in 1796 during the Napoleonic wars, the Missa Sancti Bernardi de Feltre, considered one of his most powerful works from a liturgical perspective, and the famous Nelson Mass, composed in 1798, were regularly performed in Viennese churches. Haydn succeeded in combining formal grandeur with emotional depth that perfectly met liturgical needs, thus becoming a central figure in Viennese religious life.

Ludwig van Beethoven, although primarily known for his symphonies and sonatas, also devoted himself to the composition of sacred works of great importance. His Missa Solemnis, Op. 123, composed between 1819 and 1823, represents one of the most significant sacred compositions of the Classical period. Written during a time of personal crisis, the Missa Solemnis is marked by extraordinary emotional and spiritual intensity. His Mass in C major, Op. 86, although less well known, also reflects Beethoven’s compositional mastery in a liturgical context, even if it is less complex than his later work. Although Beethoven did not write works specifically for Christmas, his music was nonetheless performed during the festive season on solemn occasions and in private salons, where his compositions were appreciated alongside those of Mozart and Haydn.

“The Classical style of Haydn, Mozart and Beethoven, while developing in different directions, shared a deep commitment to form and balance, particularly evident in their sacred compositions, which were performed in liturgical and ceremonial contexts during festive occasions” (Rosen, C. (1997). The Classical Style: Haydn, Mozart, Beethoven).

Among the lesser-known composers, Johann Michael Haydn, Joseph’s brother, should be mentioned. He wrote numerous Masses that were regularly performed in churches. The sacred music of these composers, and its importance in the Christmas liturgy, demonstrates how music was a fundamental element of religious and social life in Vienna during the Classical period.

An important consideration must be made: during the Classical period in Vienna (and more generally in Europe), sacred music was almost never reviewed in newspapers or journals, because it was part of the religious liturgy rather than a public event open to paying audiences. Published musical criticism was often devoted to theatrical works, not to Masses or oratorios performed in churches or at the court chapel. As reported in Chapter 5 of Cultivating String Quartets in Beethoven’s Vienna (Boydell Press, 2017), this is a well-documented fact in studies of musical criticism of the time, which show that reviews were rare even for string quartets or symphonies.

During the Christmas season, not only churches but also theatres and private homes were places where music was celebrated. Christmas concerts, although not always focused exclusively on Christmas themes as we understand them today, combined sacred and concert music. Works such as Mozart’s Vesperae solennes de confessore, K. 339, were often performed during the festive period, while Haydn and Beethoven, through their instrumental music, enriched the festive atmosphere in private salons and in theatres such as the Kärntnertortheater, where exclusive events were organised for the noble courts.

The tradition of Christmas markets, although not yet in the modern form we know today, already existed in a more primitive version. The Christkindlmarkt, dating back to 1772, is the oldest Christmas market in Vienna and represents a tradition that composers such as Beethoven and Mozart would certainly have known. The custom of exchanging gifts, although not as widespread as in modern celebrations, already existed among noble families and at court, where symbolic gifts such as sweets, handcrafted objects and books were exchanged.

Decorating the Christmas tree was not yet an established tradition in Vienna; the idea of the decorated tree began to spread in German-speaking regions towards the end of the eighteenth century. Christmas Eve dinner, although not the grand event we know today, was nonetheless an important moment for families, with fish-based dishes that respected Christian traditions forbidding the consumption of meat on Christmas Eve. Noble families celebrated Christmas with elegant dinners, while humbler families experienced a simpler celebration, often in the company of friends and neighbours.

In this context, Vienna confirmed itself as a meeting point for the greatest musicians in Europe. As noted by Winter, “The Vienna Philharmonic, during the Classical period, not only represented excellence in concert music, but also carried forward a tradition in which sacred music was seen as a pillar of Viennese culture, celebrated in churches and noble salons” (Winter, R. (2012). The Vienna Philharmonic and the Classical Tradition).