Please answer the following question: Information: - Music is an art form and cultural activity whose medium is sound and silence, which exist in time. The common elements of music are pitch (which governs melody and harmony), rhythm (and its associated concepts tempo, meter, and articulation), dynamics (loudness and softness), and the sonic qualities of timbre and texture (which are sometimes termed the "color" of a musical sound). Different styles or types of music may emphasize, de-emphasize or omit some of these elements. Music is performed with a vast range of instruments and vocal techniques ranging from singing to rapping; there are solely instrumental pieces, solely vocal pieces (such as songs without instrumental accompaniment) and pieces that combine singing and instruments. The word derives from Greek ("mousike"; "art of the Muses"). In its most general form, the activities describing music as an art form include the production of works of music (songs, tunes, symphonies, and so on), the criticism of music, the study of the history of music, and the aesthetic examination of music. Ancient Greek and Indian philosophers defined music as tones ordered horizontally as melodies and vertically as harmonies. Common sayings such as "the harmony of the spheres" and "it is music to my ears" point to the notion that music is often ordered and pleasant to listen to. However, 20th-century composer John Cage thought that any sound can be music, saying, for example, "There is no noise, only sound." - The Guildhall School of Music and Drama is an independent music and dramatic arts school which was founded in 1880 in London, England. Students can pursue courses in Music, Opera, Drama and Technical Theatre Arts. The modern Guildhall School is a major European conservatoire which is both a music school and a drama school, and one which is involved in technical theatre, professional development and music therapy. - Music therapy is the use of interventions to accomplish individual goals within a therapeutic relationship by a professional who has completed an approved music therapy program. Music therapy is an allied health profession and one of the expressive therapies, consisting of a process in which a music therapist uses music and all of its facetsphysical, emotional, mental, social, aesthetic, and spiritualto help clients improve their physical and mental health. Music therapists primarily help clients improve their health in several domains, such as cognitive functioning, motor skills, emotional development, social skills, and quality of life, by using music experiences such as free improvisation, singing, and listening to, discussing, and moving to music to achieve treatment goals. It has a wide qualitative and quantitative research literature base and incorporates clinical therapy, psychotherapy, biomusicology, musical acoustics, music theory, psychoacoustics, embodied music cognition, aesthetics of music, sensory integration, and comparative musicology. Referrals to music therapy services may be made by other health care professionals such as physicians, psychologists, physical therapists, and occupational therapists. Clients can also choose to pursue music therapy services without a referral (i.e., self-referral). - Richard Bissill is a French horn player , composer and arranger , and Professor at the Guildhall School of Music and Drama in London . Born in Leicestershire , he was a member of the Leicestershire Schools Symphony Orchestra and he then studied horn and piano at the Royal Academy of Music before joining the London Symphony Orchestra in 1981 . In 1984 he was appointed Principal Horn of the London Philharmonic Orchestra . Since 1990 he has been Solo Horn with London Brass , with whom he has played many new pieces commissioned by the group , including several of his own compositions and arrangements . The ensemble 's work has also included projects with popular music and jazz artists and Bissill has been featured in an improvisatory role many times . Bissill is known for his involvement in jazz performance . Whilst still a teenager , he played with the BBC Radio Leicester Big Band and later the National Youth Jazz Orchestra with which he made several recordings . His improvisatory abilities and skill in jazz styles are well known throughout the world and he is often selected for sessions or by visiting bands from abroad requiring a horn player who can swing and / or improvise . In this capacity he has worked with Quincy Jones , Lalo Schifrin , Wynton Marsalis , Michel Legrand and many others . Bissill has also improvised in a non-jazz context , recorded with the horn players Pip Eastop and Jonathan Williams . As a teacher and player he understands the capabilities of the horn , particularly its low register , and this shows itself in his numerous works for horn ensemble , including Three Portraits for horn octet and Corpendium 1 for six horns . He has also achieved success as a composer of orchestral music , his Christmas Carnival being frequently performed and having been recorded by the Royal Philharmonic Orchestra . His Sinfonia Concertante for clarinet , trumpet , horn and orchestra was commissioned by the London Symphony Orchestra to celebrate its centenary in 2004 . Bissill 's Lone Call and Charge , for... - Drama is the specific mode of fiction represented in performance. The term comes from a Greek word meaning "action" (Classical Greek: , "drama"), which is derived from "to do" (Classical Greek: , "drao"). The two masks associated with drama represent the traditional generic division between comedy and tragedy. They are symbols of the ancient Greek Muses, Thalia, and Melpomene. Thalia was the Muse of comedy (the laughing face), while Melpomene was the Muse of tragedy (the weeping face). Considered as a genre of poetry in general, the dramatic mode has been contrasted with the epic and the lyrical modes ever since Aristotle's "Poetics" (c. 335 BCE)the earliest work of dramatic theory. - Opera (English plural: "operas"; Italian plural: "opere" ) is an art form in which singers and musicians perform a dramatic work combining text (libretto) and musical score, usually in a theatrical setting. In traditional opera, singers do two types of singing: recitative, a speech-inflected style and arias, a more melodic style. Opera incorporates many of the elements of spoken theatre, such as acting, scenery, and costumes and sometimes includes dance. The performance is typically given in an opera house, accompanied by an orchestra or smaller musical ensemble, which since the early 19th century has been led by a conductor. - The French horn (since the 1930s known simply as the "horn" in some professional music circles) is a brass instrument made of tubing wrapped into a coil with a flared bell. The double horn in F/B (technically a variety of German horn) is the horn most often used by players in professional orchestras and bands. A musician who plays any kind of horn is generally referred to as a horn player (or less frequently, a hornist). What is the relationship between 'richard bissill' and 'hornist'?
A:
occupation