John Eliot Gardiner

A march is a musical genre and form designed to accompany orderly movement, most commonly military processions, parades, and ceremonial events. It is typically in duple meter (2/4 or 4/4) or compound duple (6/8), with a steady tempo that supports synchronized stepping. Classical and concert marches evolved a characteristic multi-strain structure: an introduction, two strains, a key-changing trio, a break strain ("dogfight"), and a final strain, often with a strong cadential "stinger." Instrumentation centers on winds and percussion—brass, woodwinds, snare and bass drums, and cymbals—producing a bright, projecting sonority suitable for outdoor performance. While the style is pan-European in origin, the late-19th- and early-20th-century "golden age" of the American march, led by John Philip Sousa, codified the concert march’s form, orchestration, and performance practice, influencing wind band music worldwide.

Tragédie en musique (also called tragédie lyrique) is a French Baroque operatic genre forged at the court of Louis XIV by composer Jean-Baptiste Lully and librettist Philippe Quinault. It blends a solemn, heroic or mythological subject with a distinctive five-act plan plus a ceremonial prologue, abundant choral writing, instrumental interludes, and elaborate danced divertissements. The music features the French overture (majestically dotted rhythms), supple French récitatif tailored to the nuances of the language, brief airs rather than showpiece arias, and rich orchestral colors shaped by a five-part string band and basso continuo. Its overall aesthetic is one of noble declamation, dramatic clarity, and courtly spectacle—where text, dance, chorus, and stagecraft combine into a unified theatrical experience.

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.

An oratorio is a large‑scale, multi‑movement work for voices and orchestra, typically on a sacred narrative subject, performed without staging, costumes, or scenery. It combines solo recitatives and arias with powerful choruses and instrumental movements, using a dramatic arc similar to opera but presented as a concert work. Languages and styles vary by era and region (Italian and Latin in early Roman oratorios, German for Lutheran works such as Bach’s, and English for Handel’s). While most are sacred, secular oratorios also exist. Across the Baroque, Classical, Romantic, and modern eras, the oratorio evolved from intimate devotional storytelling to monumental public concert pieces, often intended for festivals and large choirs.

A cantata is a multi-movement vocal composition with instrumental accompaniment, typically written for one or more soloists, choir, and a continuo or small orchestra. It may be sacred (for liturgical use) or secular (for courtly or domestic performance). Emerging in early 17th-century Italy, the cantata adopts the expressive recitative–aria contrast of opera on a smaller scale. Baroque church cantatas—especially in the German Lutheran tradition—often weave congregational chorales, contrapuntal choruses, and solo arias into a coherent cycle tied to the liturgical calendar. Stylistically, cantatas use tonal Baroque harmony, basso continuo, and movement types such as recitativo secco/accompagnato, da capo arias, choruses, and sinfonias. The genre later broadened into concert and scenic cantatas in the 19th and 20th centuries.

Opera is a large-scale theatrical genre that combines music, drama, and visual spectacle, in which the story is primarily conveyed through singing accompanied by an orchestra. It unites solo voices, ensembles, and chorus with staging, costumes, and often dance to create a total artwork. Emerging in late Renaissance Italy and flourishing in the Baroque era, opera developed signature forms such as recitative (speech-like singing that advances the plot) and aria (lyrical numbers that explore character and emotion). Over the centuries it evolved diverse national styles—Italian bel canto, French grand opéra, German music drama—while continually experimenting with orchestration, harmony, narrative structure, and stagecraft.

A Passion is a large‑scale sacred musical genre that sets the Gospel narrative of Christ’s suffering and crucifixion (the Passion) to music. It originated as liturgical chant and evolved into elaborate polyphonic and Baroque oratorio forms. Typical Baroque Passions feature an Evangelist (tenor narrator) who declaims the biblical text in recitative, solo roles for Jesus (Christus) and other characters, congregational-style chorales, reflective arias, and dramatic "turba" choruses representing the crowd. Earlier Renaissance Passions are often austere and predominantly choral, while Catholic traditions favored Latin and Protestant (especially Lutheran) Passions used vernacular German. Passions were historically performed during Holy Week, often in two parts surrounding a sermon, and are among the most revered monuments of Christian sacred music.

A requiem is a musical setting of the Roman Catholic Mass for the Dead (Missa pro defunctis). Historically rooted in Latin liturgy, it sets movements such as the Introit, Kyrie, (historically) the Sequence Dies irae, Offertory, Sanctus, Agnus Dei, and Communion, and often includes additional responsories like Libera me and In paradisum. While the earliest requiems were monophonic chants, the genre became a showcase for polyphonic and later symphonic choral writing. Renaissance composers wrote austere, modal settings; Classical and Romantic composers expanded the forces and dramatic scope; and 20th–21st century composers reimagined the form with new languages, from neo-modal and impressionistic harmonies to avant‑garde sonorities. Today, requiems appear both in liturgy and as concert works, symbolizing collective mourning, remembrance, and spiritual reflection.

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.

Mass is a large-scale vocal genre that sets the Ordinary of the Roman Catholic liturgy—Kyrie, Gloria, Credo, Sanctus (and Benedictus), and Agnus Dei—most often in Latin. It began as monophonic chant but developed into sophisticated polyphony and later into concert works for choir, soloists, and instruments or full orchestra. Across history, composers have used techniques such as cantus firmus, imitation, paraphrase, and parody to unify movements. The genre spans from austere a cappella writing to monumental symphonic-choral statements, and today is performed both liturgically and in the concert hall. Common subtypes include Missa brevis (short Mass, often omitting the Credo or compact in scale) and Missa solemnis (festal, expansive forces and duration).

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.

“European music” is a broad umbrella covering the historical and regional practices that developed across the European continent, from medieval sacred chant and courtly song to folk traditions, art (classical) music, and later popular and electronic styles. Common threads include the codification of staff notation, the development of modal and later tonal harmony, the use of structured forms (e.g., mass, motet, madrigal; sonata, symphony, opera; verse–chorus song), and a rich palette of instruments culminating in the modern orchestra and various regional folk ensembles. While extremely diverse from region to region, European music is marked by a continuous dialogue between sacred and secular practices, learned written traditions and oral folk idioms, and later between art music and mass-market popular genres.

Western classical is the notated art-music tradition that developed in Europe from medieval Christian chant into the large-scale secular and sacred forms of the Baroque, Classical, Romantic, and modern eras. It is characterized by staff notation, evolving systems of modality and tonality, and forms such as symphony, sonata, concerto, mass, opera, and chamber music. Across its history, Western classical established an extensive theory of harmony and counterpoint, refined orchestration across strings, winds, brass, and percussion, and cultivated performance practices from a cappella chant to full symphonic and operatic forces. Its repertoire, pedagogy, and institutions (conservatories, orchestras, opera houses) made it a global reference point for compositional craft and instrumental technique.

Choral refers to music written for and performed by a choir—an ensemble of voices organized into sections such as soprano, alto, tenor, and bass (SATB), or same-voice groupings (SSA, TTBB). It encompasses both sacred and secular repertoire and may be sung a cappella or with accompaniment by organ, piano, or full orchestra. Stylistically, choral music ranges from chant-like monophony to intricate polyphony and rich homophonic textures. Texts are drawn from liturgy, scripture, poetry, and vernacular sources, and are set in many languages. Performance contexts include church services, concert halls, and community events, making choral one of the most socially embedded and widely practiced forms of ensemble music. Across history, choral music has served as a laboratory for vocal counterpoint, word painting, and text-driven form, while functioning as a cultural bridge among religious rites, national traditions, and contemporary concert practice.