Question: Noor Zehra plays a variation of a stringed instrument that was traditionally used to play what kind of music?

Context paragraphs:
Wynne Paris: Wynne Paris (born June 22, 1964 in Redstone Arsenal, Alabama) is a new-age and world beat musician/producer with a special focus on yoga music and kirtan, the call-and-response singing of Bhakti yoga.  His live performance combines Kirtan chanting, American music (jazz, gospel music, blues and rock music), world beat rhythms and raga scales.  He sings in both English and Sanskrit, and plays guitar, sarod (a 26 stringed, sitar-like instrument from India), harmonium, saz (a stringed instrument in the lute family) and percussion.

Rajão: The rajão (Portuguese: "machete de rajão" ) is a 5-stringed instrument from Madeira, Portugal.  The instrument traces back to the country's regional folk music, where it is used in folklore dances of Portugal in addition to other stringed instruments from the same region.

Monochord: A monochord, also known as sonometer (see below), is an ancient musical and scientific laboratory instrument, involving one (mono) string (chord).  The term "monochord" is sometimes used as the class-name for any musical stringed instrument having only one string and a stick shaped body, also known as musical bows.  According to the Hornbostel–Sachs system, string bows are bar zithers (311.1) while monochords are traditionally board zithers (314).  The "harmonical canon", or monochord is, at its least, "merely a string having a board under it of exactly the same length, upon which may be delineated the points at which the string must be stopped to give certain notes," allowing comparison.

Omnichord: The Omnichord is an electronic musical instrument introduced in 1981 by the Suzuki Musical Instrument Corporation.  It typically features a touch plate, and buttons for major, minor, and 7th chords.  The most basic method of playing the instrument is to press the chord buttons and swipe the touch plate with a finger or guitar pick in imitation of strumming a stringed instrument.  Originally designed as an electronic autoharp substitute, the Omnichord has become popular as an individual instrument in its own right, due to its unique, chiming timbre and its value as a kitsch object.

Noor Zehra: Madam Noor Zehra Kazim is a Pakistani Sagar Veena player.  She is the daughter of lawyer and activist Raza Kazim who invented Sagar Veena - a stringed instrument similar to Vichitra veena and Chitra Veena.  Together with her father she runs Sanjan Nagar Institute of Philosophy and Arts, and is the only performer of Sagar Veena since its creation in 1971.  With a career spanned over four decades, she has performed both domestically and internationally, achieving critical appraisal for instrument, as well as her Indian style of music being a non-Indian.

Hurdy-gurdy: The hurdy-gurdy is a stringed instrument that produces sound by a hand crank-turned, rosined wheel rubbing against the strings.  The wheel functions much like a violin bow, and single notes played on the instrument sound similar to those of a violin.  Melodies are played on a keyboard that presses "tangents"—small wedges, typically made of wood—against one or more of the strings to change their pitch.  Like most other acoustic stringed instruments, it has a sound board and hollow cavity to make the vibration of the strings audible.

Son huasteco: Son huasteco is one of 8 Mexican song styles and is a traditional Mexican musical style originating in the 6 state area of Northeastern Mexico called La Huasteca.  It dates back to the end of the 19th century and is influenced by Spanish and indigenous cultures.  Usually it is played by a "Trio Huasteco" composed of a guitarra quinta huapanguera (a five course, eight stringed guitar-like instrument) a Jarana huasteca (a stringed instrument related to the jarana) and a violin.  Singers will often use the falsetto register.  The son huasteco is particularly noteworthy for its flamboyant and virtuoso violin parts, although the style varies from state to state.  Footwork often danced to son huasteco is the Zapateado.  Improvisation plays a strong role in the style, with musicians creating their own lyrics and arrangements to a standard repertoire.  Typical "sones huastecos" are ""Cielito lindo"", ""La huazanga"", ""La sirena"", ""El querreque"" and ""La cigarra"".

Charango: The charango is a small Andean stringed instrument of the lute family, which probably originated in the Quechua and Aymara populations in post-Columbian times, after European stringed instruments were introduced by the Spanish during colonialization.  The instrument is widespread today throughout the Andean regions of Ecuador, Bolivia, Peru, northern Chile and northwestern Argentina, where it is a popular musical instrument which exists in many variant forms.

Sitar: The sitar ( or ; Hindi: सितार Urdu: sitāra ) is a plucked stringed instrument used mainly in Hindustani music and Indian classical music.  The instrument is believed to have been derived from the veena, an ancient Indian instrument, which was modified by a Mughal court musician to conform with the tastes of his Mughal patrons and named after a Persian instrument called the setar (meaning "three strings").  The sitar flourished in the 16th and 17th centuries and arrived at its present form in 18th-century India.  It derives its distinctive timbre and resonance from sympathetic strings, bridge design, a long hollow neck and a gourd-shaped resonance chamber.  In appearance, the sitar is similar to the tanpura, except that it has frets.

Vichitra veena: The vichitra veena (Sanskrit: विचित्र वीणा is a plucked string instrument used in Hindustani music.  It is similar to the Carnatic "gottuvadhyam" (chitra vina).  It has no frets and is played with a slide.

Supporting paragraphs: Noor Zehra Vichitra veena
Answer: Hindustani music