20th-century classical pianists

Karl Søren Clausen (15 August 1904 – 5 December 1972) was a Danish pianist, conductor, composer and musicologist. In addition to his work as a high school teacher in German and Music, he composed several instrumental and choral works, as well as songs. He became increasingly involved in work with amateur choirs and school singing, and he became a very popular choir conductor, who led several choirs to many musical successes, often with his own choir arrangements, based on folk melodies.
The strong folk singing tradition that he experienced in his childhood Sønderjylland under German rule became decisively influential during his later career. In the late 1940s he began collecting sound recordings of folk singing in marginal, rural areas of Jylland, and in the 1960s he continued this work in the isolated Faroe Islands in the North Atlantic. Alongside teaching and collection work, Clausen also began studying the history of Danish and North German folk singing, and put folk singing into a new context, incorporating historical, religious and sociological aspects, as reflected in various articles, as well as a textbook.

Mary Louise Boehm (July 25, 1924 – November 29, 2002) was an American pianist and painter.
A descendant of Joseph Boehm, a piano-maker active in Vienna during the early 19th century, Mary Louise Boehm was born in Sumner, Iowa, and soon proved to be a child prodigy. She studied with Louis Crowder at Iowa State Teachers College (now the University of Northern Iowa) and subsequently with Robert Casadesus and Walter Gieseking.Boehm's repertoire and recorded output was notable for works by American composers such as Amy Beach and Ernest Schelling, who are far from mainstream, even now. She also performed and made premiere recordings of works by several early romantic composers such as John Field, Johann Nepomuk Hummel, Johann Peter Pixis, Ignaz Moscheles and Friedrich Kalkbrenner. Her advocacy introduced a generation of music lovers to these neglected composers. She was also interested in performance on period instruments at a time when this was rare.
From the 1960s she began painting, working in oils, watercolor and inks. While on concert tours in South America she became interested in textiles, which led to her involvement with weaving, textile design and the complicated field of dye and color chemistries. Eventually she chose batik as a painterly textile medium. She studied the traditional Indonesian batik techniques and pioneered modern adaptations, and had major shows in the United States.She married the Dutch violinist Kees Kooper with whom she performed regularly. In 2002 she died in Spain. Her sister Pauline Boehm Haga was also a pianist; the Grand Sonata Op. 112 by Moscheles was recorded by the sisters together.

Grete Sultan (born Johanna Margarete Sultan) (June 21, 1906 – June 26, 2005) was a German-American pianist.

Edward Kilenyi Jr. (1910 – 2000) was a classical pianist. He was born in Philadelphia, Pennsylvania on May 7, 1910. Kilenyi studied in Hungary with the composer/pianist Ernő Dohnányi at the Franz Liszt Academy of Music, earning a diploma in 1930. He later became a Professor of Music at Florida State University in Tallahassee, Florida in 1953, four years after Dohnanyi began teaching there. He died on January 6, 2000. A collection of recordings of his concerts is located at the International Piano Archives at the University of Maryland (IPAM).
His father, Edward Kilenyi Sr. (1884 – 1968), also a noted musician, arrived in the United States from Hungary in 1908. Kilenyi Sr. taught music to George Gershwin for five years and wrote music for the Sam Fox Publishing Company and over 40 movies from the 1910s-1940s.

Walter Braunfels (German pronunciation: [ˈvaltər ˈbʁaʊnfɛls]; 19 December 1882 – 19 March 1954) was a German composer, pianist, and music educator.

Raymond Lewenthal (August 29, 1923 – November 21, 1988) was an American virtuoso pianist. Among his teachers were Olga Samaroff, who was a pupil of Charles-Valentin Alkan's son, Élie-Miriam Delaborde.

Edith Picht-Axenfeld (1 January 1914 in Freiburg im Breisgau – 19 April 2001 in Hinterzarten) was a German pianist and harpsichordist.

Anne-Marie Ørbeck (1 April 1911 – 5 June 1996) was a Norwegian pianist and composer.

Robert Dankwart Leo Riefling (17 September 1911 – 1 July 1988) was a Norwegian classical pianist and pedagogist. He was regarded among Scandinavia's leading pianists, and toured all over the western world. He was a Professor in Copenhagen from 1967, and in Oslo from 1973.

Robert Levin (6 June 1912 – 29 October 1996) was a Norwegian classical pianist and composer. Although he was an accomplished solo pianist and composer, Levin received international acclaim for his work as an accompanist with several of the world's most celebrated vocal and instrumental performers.