Question: Who was the Barrister of the highest-paid American pianist and singer?

Context paragraphs:
David Saperton: David Saperton (1889–1970) was an American pianist known especially for being the first pianist to play the entire original compositions as well as the complete transcriptions of his father-in-law, Leopold Godowsky.  He also recorded a number of Godowsky’s Studies on Chopin's Études as well as other pieces.  His students at the Curtis Institute include Jorge Bolet, Shura Cherkassky, Sidney Foster, Julius Katchen, John Simms, Abbey Simon and Eleanor Sokoloff.  As a pianist he is regarded as a great dramatist, a sensitive poet and superb colorist.

Lilian Kallir: Lilian Kallir (May 6, 1931 – October 25, 2004) was a Czech-born American pianist.  Born in Prague in 1931, she moved to New York in 1940, where she studied the piano under Isabelle Vengerova and Herman de Grab, and composition and theory under Hugo Kauder.  She made her debut with the New York Philharmonic in 1957, and married fellow pianist Claude Frank in 1959, with whom she frequently performed together in her career.  In 1975, Kallir became a teacher at the Mannes School of Music, where she was once a student.  She toured frequently and collaborated with a wide range of orchestras and musicians, and was nominated for a Grammy Award for a performance of Mozart's Piano Concerto No. 17.

Kay Francis: Kay Francis (January 13, 1905 – August 26, 1968) was an American stage and film actress.  After a brief period on Broadway in the late 1920s, she moved to film and achieved her greatest success between 1930 and 1936, when she was the number one female star at the Warner Brothers studio and the highest-paid American film actress.  Some of her film-related material and personal papers are available to scholars and researchers in the Wesleyan University Cinema Archives.

Gilbert Beyfus: Gilbert Hugh Beyfus (1885-1960) was an English barrister whose clients included Liberace, John Aspinall and Aneurin Bevan.  He was called to the bar in 1908, took silk in 1933 and continued working until his death in 1960.  Many of his notable cases were related to divorce, libel, slander and interpretation of the UK gambling laws.

Butler May: Butler "String Beans" May (August 18, 1894 – November 17, 1917) was an American vaudeville performer, singer, pianist and comedian.  He has been described as "the greatest attraction in African-American vaudeville, the first recognizable blues star," and was known "for his streetwise humor, contortive vernacular dancing, and outrageous blues piano playing."  He was said to have been the highest-paid black entertainer in the country at the time of his accidental death at the age of 23, and has been claimed as "the model for Jelly Roll [Morton], at least as a stage entertainer and perhaps even as a blues pianist".  No recordings of May exist.

Willie Murphy (musician): Willie Murphy (born in Minneapolis, Minnesota) is an American pianist, singer, producer, and songwriter.  He is best known as a singer and pianist for the blues band Willie and the Bees.  He is also known for his work with Bonnie Raitt and John Koerner.

Joseph Smith (pianist): Joseph Robert Smith (July 4, 1948 – March 23, 2015) was an American pianist, author, and lecturer.  The son of Robert Paul Smith and Elinor Goulding Smith, Smith was a long-time student of pianist Seymour Bernstein.

Liberace: Władziu Valentino Liberace (May 16, 1919 – February 4, 1987), mononymously known as Liberace, was an American pianist, singer, and actor.  A child prodigy and the son of working-class immigrants, Liberace enjoyed a career spanning four decades of concerts, recordings, television, motion pictures, and endorsements.  At the height of his fame, from the 1950s to the 1970s, Liberace was the highest-paid entertainer in the world, with established residencies in Las Vegas, and an international touring schedule.  Liberace embraced a lifestyle of flamboyant excess both on and off stage, acquiring the sobriquet "Mr. Showmanship".

Christiana Lin: Christiana Lin (born in Taipei) is a Chinese-Austrian pianist and harpsichordist.  Since 1994 she has been a Steinway Artist.  From 1978 to 1992, she studied in Vienna, Innsbruck and Munich and was conferred the "Diplom Ausgezeichnet" in piano performing from the University of Music and Performing Arts, Vienna, where she studied piano under Prof. Noel Flores, and composition with Prof. Erich Urbanner.  She was also conferred the "Diplom Ausgezeichnet" in piano performing and "Diplom" in music education with additional "Schwerpunkt" in Cembalo (harpsichord) from the Tiroler Landeskonservatorium Innsbruck where she studied piano under Prof. Claude-France Journès, a renowned French-German pianist, and harpsichord under Prof. Michael Jaud, an Austrian harpsichordist and organist.  For several times at the Mozarteum International Summer Academy in Salzburg, she studied piano with the American pianist, Prof. Leon Fleisher.  She also has been to the Moscow Conservatory several times, studying with Prof. Monov and Prof. Natalie Trull.

Fannie Hurst: Fannie Hurst (October 19, 1885 – February 23, 1968) was an American novelist and short story writer whose works were highly popular during the post-World War I era.  Her work combined sentimental, romantic themes with social issues of the day, such as women's rights and race relations.  She was one of the most widely read woman authors of the 20th century, and for a time in the 1920s was one of the highest-paid American writers, along with Booth Tarkington.  Hurst also actively supported a number of social causes, including feminism, African American equality, and New Deal programs.

Supporting paragraphs: Gilbert Beyfus Liberace
Answer: Gilbert Hugh Beyfus