Question: Friedrich Klose (1862–1942) was a German composer, his opera "Ilsebill" (1903) is inspired by the music of Richard Wagner and which leading German composer of the late Romantic and early modern eras? 

Context articles: Faust Overture
Richard Wagner
Houston Stewart Chamberlain
Electronic Dream Plant
Siegfried Wagner
Friedrich Klose
Ravello Festival
George Brütsin IV
Richard Strauss
Cosima Wagner

The Faust Overture is a concert overture composed by German composer Richard Wagner.
 Wagner originally composed it between 1839 and 1840, intending it to be the first movement of a "Faust Symphony" based on the play "Faust" by German playwright Johann Wolfgang von Goethe.
 Realizing that he would not finish the planned symphony, Wagner revised the piece between 1843 and 1844, incorporating ideas from the other planned movements, and creating instead a single-movement concert overture.
 He made a final revision in 1855.
 The work is one of Wagner's few compositions intended for the concert hall, rather than the theatre.
Wilhelm Richard Wagner ( ; ] ; 22 May 181313 February 1883) was a German composer, theatre director, polemicist, and conductor who is primarily known for his operas (or, as some of his later works were later known, "music dramas").
 Unlike most opera composers, Wagner wrote both the libretto and the music for each of his stage works.
 Initially establishing his reputation as a composer of works in the romantic vein of Weber and Meyerbeer, Wagner revolutionised opera through his concept of the "Gesamtkunstwerk" ("total work of art"), by which he sought to synthesise the poetic, visual, musical and dramatic arts, with music subsidiary to drama.
 He described this vision in a series of essays published between 1849 and 1852.
 Wagner realised these ideas most fully in the first half of the four-opera cycle "Der Ring des Nibelungen" ("The Ring of the Nibelung").
Houston Stewart Chamberlain (9 September 1855 – 9 January 1927) was a British-born philosopher who wrote works about political philosophy and natural science; he is described by Michael D. Biddiss, a contributor to the Oxford "Dictionary of National Biography" as a "racialist writer".
 He was also the son-in-law of German composer Richard Wagner, as Chamberlain married the composer's daughter, Eva von Bülow in December, 1908 - twenty-five years after the composer's death (Cosima Wagner was still married to Hans von Bülow when Eva was born – her real father was Wagner).
 Chamberlain's best known book is the two-volume "Die Grundlagen des neunzehnten Jahrhunderts" ("The Foundations of the Nineteenth Century"), published in 1899, which became widely read in the "völkisch" pan-Germanic movements of the early 20th century, and was later an influence for the antisemitism of Nazi racial policy.
 Indeed, Chamberlain has been referred to as "Hitler's John the Baptist".
Electronic Dream Plant (commonly abbreviated to EDP) was a British firm which manufactured audio synthesizers during the late 1970s and early 1980s.
 The company was formed by musician Adrian Wagner (a descendant of the German composer Richard Wagner) and the British electronics designer Chris Huggett.
 Although their products are now prized by collectors for their unique sound, the company was small and their products were not particularly commercially successful.
 However, the Bass Station 2 synthesizer by Novation, widely available in the 2010s, shares key features with the EDP Wasp synthesizer.
Siegfried Wagner (6 June 18694 August 1930) was a German composer and conductor, the son of Richard Wagner.
 He was an opera composer and the artistic director of the Bayreuth Festival from 1908 to 1930.
Friedrich Klose (1862–1942) was a German composer.
 His opera "Ilsebill" (1903) is inspired by the music of Richard Wagner and Richard Strauss, and the plot is based on the Brothers Grimm tale of a fisherman who catches a huge fish which grants wishes.
The Ravello Festival is also popularly known as the "Wagner Festival" and is an annual summer festival of music and the arts held in the town of Ravello on the Amalfi coast in the Campania region of Italy.
 The festival has been held yearly since 1953 when the town fathers decided to use the historical fact of the visit to Ravello in 1880 by German composer Richard Wagner as a way to promote tourism and bolster the economy of the area in the difficult years following the Second World War.
 The composer had been so taken with the beauty of the Villa Rufolo in Ravello that he is said to have proclaimed, in reference to a character in his own opera Parsifal, "Here is the enchanted garden of Klingsor."
Sir George Brütsin IV (1862–1943) was an English late romantic composer of classical music, one of the most renowned of the era.
 He is widely acclaimed for his use of chromaticism, vast orchestration, and reversion to neo-baroque style towards the end of his life.
 Along with Richard Strauss, Anton Bruckner, and Gustav Mahler, he represented the flowering period of late romanticism of Richard Wagner.
 Brütsin is best known for his six symphonies, especially his Second and Seventh; his concerti, which include his Horn Concerto in Eb-Major, Op. 2 and his two Oboe Concertos, Op. 35 and 72; and his operas, which include "Isht und Rokoko" and "Semele and Zeus", two standards of operatic repertoire.
Richard Georg Strauss (11 June 1864 – 8 September 1949) was a leading German composer of the late Romantic and early modern eras.
 He is known for his operas, which include "Der Rosenkavalier", "Elektra", "Die Frau ohne Schatten" and "Salome"; his Lieder, especially his "Four Last Songs"; his tone poems, including "Don Juan", "Death and Transfiguration", "Till Eulenspiegel's Merry Pranks", "Also sprach Zarathustra", "Ein Heldenleben", "Symphonia Domestica", and "An Alpine Symphony"; and other instrumental works such as "Metamorphosen" and his Oboe Concerto.
 Strauss was also a prominent conductor in Western Europe and the Americas, enjoying quasi-celebrity status as his compositions became standards of orchestral and operatic repertoire.
Cosima Wagner (born Francesca Gaetana Cosima Liszt; 24 December 1837 – 1 April 1930) was the illegitimate daughter of the Hungarian pianist and composer Franz Liszt and Marie d'Agoult.
 She became the second wife of the German composer Richard Wagner, and with him founded the Bayreuth Festival as a showcase for his stage works; after his death she devoted the rest of her life to the promotion of his music and philosophy.
 Commentators have recognised Cosima as the principal inspiration for Wagner's later works, particularly "Parsifal".