Trombone in the context of Robert Quimby

An orchestra (/ˈɔːrkɪstrə/ ; OR-ki-strə) is a large instrumental ensemble typical of classical music, which combines instruments from different families. There are typically four main sections of instruments:

• The string section, including the violin, viola, cello, and double bass
• The woodwind section, including the flute, oboe, clarinet, bassoon, and occasionally saxophone
• The brass section, including the French horn (commonly known as the "horn"), trumpet, trombone, cornet, and tuba, and sometimes euphonium
• The percussion section, including the timpani, snare drum, bass drum, cymbals, triangle, tambourine, tam-tam and mallet percussion instruments

Other instruments such as the piano, harpsichord, pipe organ, and celesta may sometimes appear in a fifth keyboard section or may stand alone as soloist instruments, as may the concert harp and, for performances of some modern compositions, electronic instruments, and guitars.

In music, a counter-melody (often countermelody) is a sequence of notes, perceived as a melody, written to be played simultaneously with a more prominent lead melody. In other words, it is a secondary melody played in counterpoint with the primary melody. A counter-melody performs a subordinate role, and it is typically heard in a texture consisting of a melody plus accompaniment.

In marches, the counter-melody is often given to the trombones or horns. American composer David Wallis Reeves is credited with this innovation in 1876.

A big band or jazz orchestra is a type of musical ensemble of jazz music that usually consists of ten or more musicians with four sections: saxophones, trumpets, trombones, and a rhythm section. Big bands originated during the early 1910s and dominated jazz in the early 1940s when swing was most popular. The term "big band" is also used to describe a genre of music, although this was not the only style of music played by big bands.

Big bands started as accompaniment for dancing the Lindy Hop. In contrast to the typical jazz emphasis on improvisation, big bands relied on written compositions and arrangements. They gave a greater role to bandleaders, arrangers, and sections of instruments rather than soloists.

The chromatic scale (or twelve-tone scale) is a set of twelve pitches (more completely, pitch classes) used in tonal music, with notes separated by the interval of a semitone. Chromatic instruments, such as the piano, are made to produce the chromatic scale, while other instruments capable of continuously variable pitch, such as the trombone and violin, can also produce microtones, or notes between those available on a piano.

Most music uses subsets of the chromatic scale such as diatonic scales. While the chromatic scale is fundamental in western music theory, it is seldom directly used in its entirety in musical compositions or improvisation.

A bassist (also known as a bass player or bass guitarist) is a musician who plays a bass instrument such as a double bass (upright bass, contrabass, wood bass), bass guitar (electric bass, acoustic bass), keyboard bass (synth bass) or a low brass instrument such as a tuba or trombone. Many musical genres tend to be associated with at least one or more of these instruments.

In music, a glissando (Italian: [ɡlisˈsando]; plural: glissandi, abbreviated gliss.) is a glide from one pitch to another (Play). It is an Italianized musical term derived from the French glisser, "to glide". In some contexts, it is equivalent to portamento, which is a continuous, seamless glide between notes. In other contexts, it refers to discrete, stepped glides across notes, such as on a piano. Some terms that are similar or equivalent in some contexts are slide, sweep bend, smear, rip (for a loud, violent glissando to the beginning of a note), lip (in jazz terminology, when executed by changing one's embouchure on a wind instrument), plop, or falling hail (a glissando on a harp using the back of the fingernails). On wind instruments, a scoop is a glissando ascending to the onset of a note achieved entirely with the embouchure, except on instruments that have a slide (such as a trombone).

Wendell Edward Pierce (born December 8, 1962) is an American actor and businessman. Having trained at Juilliard School, Pierce rose to prominence as a character actor of stage and screen. He first gained recognition portraying Detective Bunk Moreland in the HBO drama series The Wire from 2002 to 2008.

Pierce's other notable television roles include the trombonist Antoine Batiste in Treme (2010–2013), James Greer in Tom Clancy's Jack Ryan (2018–2023), the attorney Robert Zane in Suits (2013–2019), and Clarence Thomas in Confirmation (2016). He earned Independent Spirit Awards nominations for his film roles in Four (2012) and Burning Cane (2019), on which he also served as a producer. Other notable film roles include Malcolm X (1992), Waiting to Exhale (1995), Ray (2004), Selma (2014), The Gift (2015), and Clemency (2019).

Viola da braccio (from Italian "arm viola", plural viole da braccio) is a term variously applied during the baroque period to instruments of the violin family, in distinction to the viola da gamba ("leg viola") and the viol family to which the latter belongs. At first "da braccio" seems to encompass the entire violin family. Monteverdi's Orfeo (printed 1609) designates an entire six-part string section "viole da brazzo", apparently including bass instruments held between the knees like the cello and bass violin. His Selva morale (1641) contains a piece calling for "due violini & 3 viole da brazzo ouero 3 Tronboni" (2 violins & 3 viole da braccio or trombones), reflecting a general shift in meaning towards the lower instruments. Eventually it came to be reserved for the alto member, the viola. A famous example is Bach's Sixth Brandenburg Concerto (1721), combining two viole da braccio with two viole da gamba. The German word for viola, Bratsche, is a relic of this last use.

Thomas Francis Dorsey Jr. (November 19, 1905 – November 26, 1956) was an American jazz trombonist, composer, conductor and bandleader of the big band era. He was known as the "Sentimental Gentleman of Swing" because of his smooth-toned trombone playing. His theme song was "I'm Getting Sentimental Over You". His technical skill on the trombone gave him renown among other musicians. He was the younger brother of bandleader Jimmy Dorsey. After Dorsey broke with his brother in the mid-1930s, he led an extremely successful band from the late 1930s into the 1950s. He is best remembered for standards such as "Opus One", "This Love of Mine" (no. 3 in 1941) featuring Frank Sinatra on vocals, "Song of India", "Marie", "On Treasure Island", and his biggest hit single, "I'll Never Smile Again" (no. 1 for 12 weeks in 1940).

The baritone horn, or often simply the baritone, is a valved brass instrument pitched in B♭ in the saxhorn family, employed chiefly in brass, military and concert bands. It has three or sometimes four valves, usually piston valves, although rotary valves are common in Eastern and Central Europe, where it is called the Tenorhorn. The bore is moderately conical, like the E♭ tenor horn and cornet, although narrower than the closely related euphonium and other valved bugles, like the flugelhorn and tuba. It uses a wide-rimmed cup mouthpiece of similar dimensions to trombone and euphonium mouthpieces. Like the trombone and the euphonium, the baritone can be considered either a transposing instrument reading B♭ treble clef, or a non-transposing instrument in bass clef.

In British brass bands, the standard instrumentation includes parts for two baritones, in addition to two euphoniums. In US concert band music there is often a part marked baritone, but these parts are commonly intended for, and played on, the euphonium. A baritone can also play music written for a trombone due to similarities in timbre and range.

The valve trombone is a brass instrument in the trombone family that has a set of valves to vary the pitch instead of (or in addition to) a slide. Although it has been built in sizes from alto to contrabass, it is the tenor valve trombone pitched in B♭ an octave lower than the trumpet which has seen the most widespread use. The most common models have three piston valves. They are found in jazz and popular music, as well as marching bands in Europe, where they are often built with rotary valves and were widely used in orchestras in the 19th century.

The superbone (sometimes known as the double trombone) is a duplex (or "hybrid") tenor trombone in B♭ that has both a slide, like a regular trombone, and a set of valves like a valve trombone. It is a relatively rare instrument.

The bass trombone is the bass instrument in the trombone family of brass instruments. Modern instruments are pitched in the same B♭ as the tenor trombone but with a larger bore, bell and mouthpiece to facilitate low register playing, and usually two valves to fill in the missing range immediately above the pedal tones.

The alto trombone (German: Altposaune, Italian, French: trombone alto) is the alto member of the trombone family of brass instruments, smaller than the tenor trombone. It is almost always pitched in E♭ a fourth higher than the tenor, although examples pitched in F are occasionally found. The alto trombone was commonly used from the 16th to the 18th centuries in church music to strengthen the alto voice, particularly in the Mass. Alto trombone parts are usually notated in alto clef.