Alexander Courage
Alexander Mair" Sandy" Courage Jr.( December 10, 1919
May 15, 2008) was an American orchestrator, arranger, and composer of music, primarily for television and film.
He is best known as the composer of the theme music for the original" Star Trek" series.
Karl Wilhelm (conductor)
Karl Wilhelm, also Carl Wilhelm( 5 September 1815, Schmalkalden – 26 August 1873, Schmalkalden) was a German choral director.
He is best known as the composer of the music of the song “ Die Wacht am Rhein. ”
Pydimarri Venkata Subba Rao
Pydimarri Venkata Subba Rao( June 10, 1916 – 1988) was a Telugu author who is best remembered as the composer of the National Pledge of India.
Alexandru Cristea
Alexandru Cristea( 1890 – 1942) was the composer of the music for" Limba Noastră", current national anthem of Moldova.
Julpolska
Julpolska, also known as " Nu ha vi ljus här i vårt hus", is a Christmas song with lyrics by Rafael Hertzberg (1845-1896) and music by Johanna Ölander (1827-1909).
Song lyrics describe Christmas Eve, dated from a time when the Christmas goat at many places still was the giftbringer, not Santa Claus.
The song was also used in the 1987 film "Mer om
oss barn i Bullerbyn".
Johanna Ölander
Johanna Ölander (23 May 1827 – 16 July 1909, Hedvig Eleonora Parish, Stockholm, Sweden) was a Swedish song composer.
She has written the tune for the Christmas song "JulpolskaNu ha vi ljus, här
i vårt hus").
She was married with Per August Ölander.
Walter Robinson (composer)
Walter Robinson is an African American composer of the late 20th century.
He is most notable for his 1977 song" Harriet Tubman", which has been recorded by folk musicians such as Holly Near, John McCutcheon, and others.
He is also the composer of several operas.
Michelangelo Faggioli
Michelangelo Faggioli( 1666–1733) was an Italian lawyer and celebrated amateur composer of humorous cantatas in Neapolitan dialect.
A founder of a new genre of Neapolitan comedy, he was the composer of the opera buffa" La Cilla" in 1706.
Petrus de Domarto
Petrus de Domarto( fl. c. 1445– 1455) was a Franco- Flemish composer of the Renaissance.
He was a contemporary and probable acquaintance of Ockeghem, and was the composer of at least one of the first unified mass cycles to be written in continental Europe.
Alonso Mudarra
Alonso Mudarra( c. 1510 – April 1, 1580) was a Spanish composer of the Renaissance, and also played the vihuela, a guitar- shaped string instrument.
He was an innovative composer of instrumental music as well as songs, and was the composer of the earliest surviving music for the guitar.

Question: What nationality is the composer of song Julpolska?