Here is an image of a stamp featuring a portrait of Norwegian composer and pianist Edvard Grieg (1843-1907), and depicting fanciful creatures and the score for Solveig's Song from Peer Gynt, Op. 23, designed and engraved by French artist Pierre Albuisson (1952- ), and issued by Monaco on December 10, 1993 to commemorate the 150th anniversary of the composer's birth, Scott No. 1886, plus an image of a photograph of Edvard Grieg in 1888, and a YouTube link to a recording of Solveig's Song by the Slovak Philharmonic Orchestra.
Here is an image of a stamp featuring a portrait of Austrian composer Carl Michael Ziehrer (1843-1922) and depicting a partial score from one of his compositions, designed by Adalbert Pilch (1917-2004), engraved by Rudolf Toth (1918-2009), and issued by Austria on November 14, 1972 to commemorate the 50th anniversary of the composer's death, Scott No. 932, plus an image of the photograph of Carl Michael Ziehrer which was may have been a model (sans the martial attire) for this stamp's design, and a YouTube link to a recording of Ziehrer's lively waltz In lauschiger Nacht, Op. 488, (c. 1905), performed by the Berliner Symphoniker, Robert Stolz conducting.
Here is an image of a stamp featuring a portrait of Lithuanian composer, painter and writer Mikalojus Konstantinas Chiurlionis (1875-1911), and depicting waves and a lighthouse, designed by K. Iodikaitis, combined engraved by Vladimr Smirnov and photogravure, and issued by Russia (USSR) on August 20, 1975 to commemorate the composer's birth centenary, Scott No. 4357, Zagorski No. 4442, plus an image of a photograph of the composer, and a YouTube link to a recording of M. K. Chiurlionis's symphonic poem entitled Jura ("The Sea").
Here is an image of an airmail stamp depicting a woman in a diaphanous gown dancing, designed after a vintage Oscar Brandstetter, Leipzig poster promoting a performance in Germany of the waltz Sobre las Olas ("Over the Waves," 1988), the best known work by Mexican composer Juventino Rosas (1868-1894), printed by lithography, and issued by Mexico on October 16, 1972 to publicize the 28th Congress of the International Confederation of Societies of Authors and Composers, held in Mexico City, October 16-21, Scott No. C407, plus a YouTube link to a recording of Sobre las Olas, a tune with which everyone here "of a certain age" will surely be familiar.
Here is an image of a stamp featuring a portrait of Russian composer and pianist Alexander Nikolayevich Scriabin (1872-1915), designed by Vasili Vasilievich Zavialov (1906-1972), printed by photogravure, and issued by Russia (USSR) on January 6, 1972 to commemorate the composer's birth centenary, Scott No. 3938, Zagorski No. 4023, plus an image of a photograph of Alexander Scriabin, and a YouTube link to a performance by Vladimir Horowitz of Scriabin's soulful Etude for piano in C# minor, Op. 2 no. 1.
Here is an image of a stamp featuring a portrait of Hungarian composer Franz Liszt (1811-1886), designed and engraved by French artist Eugene Lacaque (1914-2005), and issued by Luxembourg on March 14, 1977 as one of four stamps in a set commemorating "famous visitors" to Luxembourg, Scott No. 596, plus an image of a photograph of Franz Liszt at about the same age, and a YouTube link to a performance by Ukrainian-American pianist Valentina Lisitsa of Franz Liszt's Hungarian Rhapsody No. 2.
Here is an image of a stamp featuring a portrait of Flemish composer, conductor, and music teacher Arthur Meulemans (1884-1966), designed by Paul Deweerd, combined engraved by Charles Leclercqz (1922-2013) and photogravure, and issued by Belgium on November 17, 1984 to commemorate the composer's birth centenary, Scott No. 1183, plus an image of a photograph of Arthur Meulemans which may have been a model for this stamp's design, and a YouTube link to a recording of Meuleman's 1928 composition "Stadspark City Park" (Maastricht), a scherzo with praeludium for orchestra, performed by the Vlaams Radio Orkest, Jan Latham-Koenig conducting.
Here is an image of a stamp featuring a portrait of German soprano Charlotte "Lotte" Lehmann (1888-1976) in costume for one of her greatest roles as the Marschallin in Richard Strauss's comic opera <i>Der Rosenkavalier</i> (1911), printed by lithography (De La Rue de Colombia), and issued by Nicaragua as one of a set of fifteen stamps honoring famous opera singers, Scott No. 964, plus an image of the February 18, 1935 cover of <i>Time</i> magazine which features a photograph of Lotte Lehmann once again in the Marschallin costume, and a YouTube link to a video of Lotte Lehmann´s demonstration of the Marschallin´s monologue from <i>Der Rosenkavalier</i>, in a master class at the Music Academy of the West in Santa Barbara, in 1961.
Here is an image of an engraved stamp commemorating the birth centenary of Walter Kollo (1878-1940), a German composer of operettas and popular songs, designed by Joachim Hans Hiller, and issued by Germany (Berlin) on January 12, 1978, Scott No. 9N415, Michel No. 561, plus a cropped image of a photograph of the composer which was a model (sans cigarette) for this stamp's design, and a YouTube link to a recording of Ruth Zillger and Otto Falvay performing the duet Warte, warte nur ein Weilchen ("Wait, Wait Just a Little While") from Walter Kollo's operetta "Marietta" (1923).
Here is an image of a stamp featuring a portrait of Alexander Girardi (1850-1918), an Austrian actor and tenor singer in operettas, designed by Wilhelm Dachauer (1881-1951), engraved by Ferdinand Lorber (1883-1957), and issued by Austria on December 5, 1950 to commemorate the singer's birth centenary, Scott No. 568, plus an image of a photograph of Alexander Girardi in costume as "Adam, a birdseller from the Tyrol" in Carl Zeller's operetta Der Vogelhändler ("The Bird Seller," 1857).
Here are images of the two stamps in a set featuring portraits of Swiss musicians, designed by Hans Erni (1909-2015), printed by photogravure (Courvoisier S.A.), and issued by Switzerland as Europa stamps on July 7, 1985, Scott Nos. 755 & 756, plus photos of the musicians, and a YouTube link to a recording of a 1967 performance of Frank Martin's "Concerto pour Violoncelle" by the Orchestre de la Suisse Romande, Pierre Fournier, violoncelle soloist, Ernest Ansermet, conducting. Bonus: Signatures.
Here is an image of a stamp featuring a portrait of Finnish composer, music critic, conductor, and teacher Leevi Antti Madetoja (1887-1947), and depicting one of his musical scores, designed by Asser Jaaro, printed by lithography, and issued by Finland on February 17, 1987 to commemorate the composer's birth centenary, Scott No. 751, Facit No. 1015, plus an image of an autographed photograph of Leevi Madetoja (c. 1930s), and a YouTube link to a recording of his "Symphonic Poem Dance Vision," op. 11, performed by the Estonian National Symphony Orchestra, Sasha Mäkilä, conductor.