Missa in C, K. 257 "Credo" / Litaniae de Venerabili Altaris Sacramento, K.243

Baroque is a period and style of Western art music spanning roughly 1600–1750. It is characterized by the birth of functional tonality, the widespread use of basso continuo (figured bass), and a love of contrast—between soloist and ensemble, loud and soft, and different timbres. Hallmark genres and forms of the era include opera, cantata, oratorio, concerto (especially the concerto grosso), dance suite, sonata, and fugue. Textures range from expressive monody to intricate counterpoint, and melodies are richly ornamented with trills, mordents, and appoggiaturas. Baroque music flourished in churches, courts, and theaters across Europe, with regional styles (Italian, French, German, English) shaping distinctive approaches to rhythm, dance, harmony, and ornamentation.

Passion setting is a sacred vocal genre that sets the biblical Passion narrative—the arrest, trial, crucifixion, and burial of Jesus—to music. Originally emerging from medieval chant traditions, it later evolved into elaborate multi-movement works featuring narrator (Evangelist), the words of Christ (Christus), soloists for individual roles, and choral "turba" movements representing the crowd. Across history, passion settings range from austere, unaccompanied chant or Renaissance polyphony to large Baroque oratorio-scale works with orchestra and chorales. While Latin and German are the most common languages (reflecting Catholic and Lutheran traditions), the form has been adapted into many vernaculars in the 20th and 21st centuries. In all cases, the musical rhetoric emphasizes solemn devotion, drama, and theological reflection.

Classical music is the notated art-music tradition of Europe and its global descendants, characterized by durable forms, carefully codified harmony and counterpoint, and a literate score-based practice. The term “classical” can refer broadly to the entire Western art-music lineage from the Medieval era to today, not just the Classical period (c. 1750s–1820s). It privileges long-form structures (such as symphonies, sonatas, concertos, masses, and operas), functional or modal harmony, thematic development, and timbral nuance across ensembles ranging from solo instruments to full orchestras and choirs. Across centuries, the style evolved from chant and modal polyphony to tonal harmony, and later to post-tonal idioms, while maintaining a shared emphasis on written notation, performance practice, and craft.