Le jeune compositeur Franz Schubert doit mettre sa guitare en gage pour payer son loyer. Emmy, la fille du prêteur en gage, est si séduite par son allure simple et amicale qu'elle lui fait payer un montant plus élevé que l'instrument. Bientôt les deux jeunes gens se rapprochent. Le chef d'orchestre Antonio Salieri a entendu parler du talent de Schubert, lui fait passer un entretien et l'engage comme professeur assistant. Schubert est ensuite invité à une soirée pour les nouveaux talents organisée par madame Kinsky. Quand le Viennois présente sa symphonie inachevée, au cours de son exécution, il lui vient soudainement à l'esprit plusieurs fins possibles qu'il présente dans sa ferveur immature. Le public se met à rire, Schubert est en colère et quitte la soirée.
Waltzes from Vienna begins the sound of the fire brigade horn and the clip-clop of horses’ hooves, as the firemen race towards a fire at Ebezeder’s Café. Upstairs from the café, Rasi and Schani are oblivious to the danger, lost in a love duet that concludes with Schani telling Rasi that he has dedicated his newest song to her. At the same time, Schani’s music attracts the attention of the Countess Helga von Stahl, who is shopping in the dressmaker’s store next door. Schani and Rasi’s romantic interlude is interrupted by Leopold, a baker in Rasi’s father's café who is in love with Rasi, as he awkwardly climbs up the ladder to save her. Schani and Leopold argue over who will save Rasi from the fire, but Leopold eventually wins and hauls Rasi over his shoulder and down the ladder, causing her to lose her skirt on the way. Rasi races to the dressmaker’s shop to get away from the laughter of the onlookers. Schani retrieves Rasi’s skirt and then stumbles into the dressmaker’s in search of Rasi, where he meets the Countess. When the Countess learns that Schani is an aspiring musician, she proposes that he set some of her verses to music. As the Countess offers Schani her card, Rasi enters the room and becomes immediately suspicious of the Countess’s intentions.
En 1777, après une dispute avec le Prince-archevêque de Salzbourg Hieronymus von Colloredo-Mannsfeld, Mozart part avec sa mère pour Paris. Pendant le voyage, il persuade sa mère de s'arrêter à Mannheim pour voir Aloysia Weber dont il est amoureux. Après avoir chanté une chanson composée par Mozart, elle a obtenu un emploi à la cour royale. À contrecœur Mozart se rend à Paris. Mais en France, il ne retrouve pas le succès qu'il a connu comme enfant prodige. De plus, sa mère meurt à Paris. Il retourne donc à Salzbourg.
Vidor romanticizes Chopin's patriotism in the film, which was produced during World War II. Chopin, played by Cornel Wilde, is first presented to the audience as a child prodigy playing a piece by Mozart, but suddenly starts to bang on the piano keys when he notices out the window that Polish people are being taken prisoners by the Russian authorities.
Le film raconte l'histoire - quelque peu romancée - de Giovanni Ricordi, qui peu à peu acquiert les partitions des plus grands compositeurs de son temps (Donizetti, Bellini, Puccini, Rossini, Verdi…) et fonde la maison d'édition musicale « Casa Ricordi ».
Les dix dernières années de la brève vie du compositeur viennois Franz Schubert, sa relation sentimentale avec la soprano Therese Grob puis ses amours interrompues avec sa jeune et belle élève, la comtesse Caroline Esterházy.
Oksana est une jeune fille amoureuse d'un garçon de son village, Anton. Elle remporte un grand prix de musique dans une grande ville "occidentale" et se voit autoriser à entrer au conservatoire.
Sir Alfred de Carter (Rex Harrison) is a world-famous symphony conductor who returns from a visit to his native England and discovers that his rich and boring brother-in-law, August Henshler (Rudy Vallee), has misunderstood Alfred's casual instruction to watch over his much younger wife Daphne (Linda Darnell) while he was away, and instead hired a detective named Sweeney (Edgar Kennedy) to follow her. Alfred is livid, and ineptly attempts to destroy any evidence of the detective's report.
Tony Fiala (played by Vincent Winter) is a working-class boy whose greatest desire is to become a member of Vienna's most famous choir. His father, however, wants his son to follow in his own footsteps as an engine driver. Unlike his loving and supportive mother, he sees no future for the boy in music.
The protagonist, Gustav von Aschenbach, travels to Venice for health reasons. There, he becomes obsessed with the stunning beauty of an adolescent Polish boy named Tadzio who is staying with his family at the same Grand Hôtel des Bains on the Lido as Aschenbach.
Eva (Liv Ullmann), wife of the village pastor, invites her mother Charlotte (Ingrid Bergman) for a visit to her village. She has not seen her for over seven years. Her mother is a world-renowned pianist, somewhat eccentric, aging, and has survived several husbands. Eva is not as talented as the mother (despite the fact that she has written two books, and has a passing talent at playing the piano). Eva's main concern is to be the mistress of her home, wife, mother and loving sister. It is gradually learned through her dialogue with her mother that her life has had a large number of unfortunate setbacks: a husband (Halvar Björk) she respects, but does not really have affection for, their son drowned when only 4 years old, and Charlotte never appears to have loved Eva as a mother normally loves a daughter. As part of her day-to-day life, Eva takes her disabled and paralyzed sister Helena (Lena Nyman) out of the Hospital into her own home, and she appears to be the only person who can understand her sister's limited speech ability.
1886. Le jeune Arturo Toscanini, violoncelliste de Parme, auditionne à la Scala de Milan. Mais le jury ne s'intéresse guère à son talent et le renvoie. Furieux, Toscanini est approché par un impresario témoin de l'altercation, Claudio Rossi, qui lui propose de venir au Brésil afin de participer à la première locale de l'opéra Aïda. Egalement pianiste de formation, Toscanini connaît déjà un immense répertoire et accompagne les chanteurs de la troupe au piano. Sur le bateau, après avoir pris froid lors d'une tempête, il fait la connaissance de Sœur Margherita, qui fait partie d'une mission de religieuses en partance pour l'Amérique latine.