Question: The older sister of Chiang Shu-na is often compared to another singer, what is that singer known for?

Context paragraphs:
Roger Yang: Roger Yang Pei-an (; born June 5, 1971) is a Taiwanese rock singer known for breaking out as an "undiscovered" talent at the age of 35 in the Taiwanese music industry with the hit song, "I Believe" (我相信) that established his powerhouse, octave-jumping vocal skills, leading him to be dubbed as the "Iron Lung Prince" (鐵肺王子) by the Taiwanese media and the "Treble God" (高音之神) by his fans.  His voice has often compared to late singer-songwriter Zhang Yu-Sheng due to his penchant for singing the latter's songs and their similar ability to sing high notes effortlessly and clearly without using falsetto.

Organum: Organum ( ) is, in general, a plainchant melody with at least one added voice to enhance the harmony, developed in the Middle Ages.  Depending on the mode and form of the chant, a supporting bass line (or "bourdon") may be sung on the same text, the melody may be followed in parallel motion (parallel organum), or a combination of both of these techniques may be employed.  As no real independent second voice exists, this is a form of heterophony.  In its earliest stages, organum involved two musical voices: a Gregorian chant melody, and the same melody transposed by a consonant interval, usually a perfect fifth or fourth.  In these cases the composition often began and ended on a unison, the added voice keeping to the initial tone until the first part has reached a fifth or fourth, from where both voices proceeded in parallel harmony, with the reverse process at the end.  Organum was originally improvised; while one singer performed a notated melody (the "vox principalis"), another singer—singing "by ear"—provided the unnotated second melody (the "vox organalis").  Over time, composers began to write added parts that were not just simple transpositions, thus creating true polyphony.

Jody Chiang: Jody Chiang or Jiang Hui (), born Jiang Shuhui (), is a Taiwanese popular singer.  She began recording in the 1980s and retired in 2015, having released 60 albums.  Her trademark ballads and folk songs are typically sung in Taiwanese.  Her role in Taiwan's popular music scene is often compared to that of Teresa Teng.  She is the older sister of Chiang Shu-na.

Chiang Hsiao-wu: Chiang Hsiao-wu (; also known as Alex Chiang; April 25, 1945 - July 1, 1991) was the second son of Chiang Ching-kuo, the President of the Republic of China in Taiwan from 1978 to 1988.  His mother is Faina Ipatyevna Vakhreva, also known as Chiang Fang-liang.  He had one older brother, Hsiao-wen, one older sister, Hsiao-chang, and one younger brother, Hsiao-yung.  He also had two half-brothers, Winston Chang and John Chiang, with whom he shared the same father.

Teresa Teng: Teresa Teng (29 January 1953 – 8 May 1995) was a Taiwanese singer.  She was known for her folk songs and romantic ballads, such as "When Will You Return? " and "The Moon Represents My Heart".  She recorded songs not only in her native Mandarin but also in Taiwanese Hokkien, Cantonese, Japanese, Indonesian and English.

Chen Ying-git: Chen Ying-Git, is a female singer of Taiwanese Hakka heritage.  She has produced albums from the 1980s through the 1990s like another singer, Jody Chiang.  One of her famous songs is 海海人生.  She also sang a famous duet called 酒醉黑白話 with Taiwanese male singer Yu Tian.

Jonny Briggs: Jonny Briggs is a Children's BBC kitchen sink realism television programme first broadcast in 1985.  It revolves around the exploits of a young boy, the eponymous hero (played by Richard Holian), his pet dog, Razzle, and his eccentric family members: Mam (Jane Lowe) and Dad (Leslie Schofield), older sister Rita (Sue Devaney) and older brothers Albert (Tommy Robinson) and Humph (Humphrey) (Jeremy Austin).  Another older sister, Marilyn, is mentioned but never seen.  The stories often centre on Jonny's school life, where he and his best friend Pam are constantly in battle with the dreadful twins Ginny and Josie.

I Am a Singer (Chinese TV series): I Am a Singer () is a Chinese version of the Korean reality show "I Am a Singer" and it is broadcast on Hunan Television.  Seven talented, veteran Chinese singers perform for a selected audience, which votes to eliminate one singer after each week's performance.  The following week, another singer joins the competition, and the lineup of artists varies throughout the course of the show.

Chiang Hsiao-wen: Chiang Hsiao-wen (; also known as Alan Chiang; December 1935 – April 14, 1989) was the eldest son of Chiang Ching-kuo, the President of the Republic of China in Taiwan from 1978 to 1988.  His mother is Faina Ipatyevna Vakhreva, also known as Chiang Fang-liang.  He had one younger sister, Hsiao-chang, and two younger brothers, Hsiao-wu and Hsiao-yung.  He had two half-brothers, Winston Chang and John Chiang, with whom he shared the same father.

Chiang Shu-na: Chiang Shu-na (born 30 July 1964) is a Taiwanese singer, television presenter, and actress.

Supporting paragraphs: Jody Chiang Teresa Teng
Answer: She was known for her folk songs and romantic ballads, such as "When Will You Return?"