Composer and organist
Dvořák called his String Quintet in A minor (1861) his Opus 1, and his First String Quartet (1862) his Opus 2, although the chronological Burghauser Catalogue numbers these as B.6 and B.7, showing five earlier compositions without opus numbers. In the early 1860s, Dvořák also made his first symphonic attempts, some of which he self-critically burned. The manuscript of a symphony in C minor without opus number, B.9, composed in 1865, was preserved. This symphony has come to be numbered as Dvořák's First (see under "Works"). His early attempts at composition met with neither critical reception nor were they publicly performed. Until 1870 his compositions, according to the Burghauser Catalogue had no known premieres, or were premiered in 1888 or later. For example, the Third String Quartet, B.18, was written in about 1869 but first published posthumously in 1964 and premiered in 1969. In 1870, he composed his first opera, Alfred, over the course of five months from May to October. Its overture was first publicly performed as late as 1905, and the full opera only in 1938.
In 1871, Dvořák left the Provisional Theatre orchestra to have more time for composing. Up through 1871 Dvořák only gave opus numbers up to 5 among his first 26 compositions. The first press mention of Antonín Dvořák appeared in the Hudební listy journal in June 1871, and the first publicly performed composition was the song Vzpomínání ("Reminiscence"), October 1871, musical evenings of Jan Ludevít Procházka. The opera The King and the Charcoal Burner was returned to Dvořák from the Provisional Theatre and said to be unperformable. Its overture was premiered in 1872 in a Philharmonic concert conducted by Bedřich Smetana, but the full opera with the original score was performed once in 1929, and not heard again until a concert performance in September 2019 at the Dvořák Prague International Music Festival. Clapham says Dvořák realized he had gone to "extremes in attempting to follow the example of Wagner". In 1873–74, he reset "the King and Charcoal Burner libretto entirely afresh, in a totally different manner", without using "anything from the ill-fated earlier version". The alternate opera, called King and Charcoal Burner II, B.42, was premiered in Prague in 1874.
On leaving the National Theater Orchestra after his marriage, Dvořák secured the job of organist at St. Vojtěch, also called St. Adalbert's Church in Prague under Josef Foerster, his former teacher at the Organ School. The job paid "a mere pittance", but it was "a welcome addition for the young couple". Despite these circumstances, Dvořák still managed to compose a substantial body of music around this time.
In November 1872, Dvořák's Piano Quintet in A major, Op. 5, was performed in Prague, by a "splendid team of players" organized by Procházka. It was his first piece played in a concert. In March 1873, his Czech patriotic cantata The Heirs of the White Mountain was performed by the Prague Hlahol Choral Society of 300 singers (conducted by his friend and supporter Karel Bendl) to a warm response from both audience and critics, making it an "unqualified success". Dvořák's compositions were now becoming recognized in Prague.
When Dvořák turned 33 in 1874, he was still almost unknown as a composer outside Prague and the surrounding area. That year, he applied for and won the Austrian State Prize ("Stipendium") for composition, awarded in February 1875 by a jury consisting of the critic Eduard Hanslick, Johann Herbeck, director of the State Opera, and Johannes Brahms. It seems that Brahms had only recently joined the jury, as he was not on it during the calendar year of 1874, according to Hanslick. Hanslick had first-hand knowledge, as a continuing member of the jury
(from at least 1874 to 1877). Nevertheless, Brahms had time and opportunity to appreciate Dvořák's 1874 submission. Leon Botstein says that the jury's purpose was "to award financial support to talented composers in need" in the Austro-Hungarian Empire. The jury received a "massive submission" from Dvořák: "fifteen works including two symphonies, several overtures and a song cycle". Brahms was "visibly overcome" by the "mastery and talent" of Dvořák. The two symphonies were Dvořák's third and fourth, both of which had been premiered in Prague in the spring of 1874.
Clapham gives the official report for the 1874 prize, saying Dvořák was a relatively impoverished music teacher who "has submitted 15 compositions, among them symphonies, which display an undoubted talent...The applicant... deserves a grant to ease his straitened circumstances and free him from anxiety in his creative work." It says he had not yet owned a piano. Before being married, he had lodged with five other men, one of whom owned a small "spinet" piano.
In 1875, the year his first son was born, Dvořák composed his second string quintet, his 5th Symphony, Piano Trio No. 1, and Serenade for Strings in E. He again entered but this time did not win the Austrian State Prize. He did win it in 1876, and finally felt free to resign his position as an organist. In 1877, he wrote the Symphonic Variations, and Ludevít Procházka conducted its premiere in Prague.