P. Jurgenson (in Russian: П. Юргенсон) was, in the early twentieth century, the largest publisher of classical sheet music in Russia.
Founded in 1861, the firm — in its original form, or as it was amalgamated in 1918 with other Russian music publishing firms into the state owned music publishing monopoly — endured the latter of three of the four below listed eras (the first three were defined by Lenin as corresponding to three chief classes of Russian society):
Pyotr Ivanovich Jurgenson (Estonian: Peeter Jürgenson; July 17th 1836 – 1904), born in Tallinn, Estonia, founded P. Jurgenson in 1861 on the advice of Nikolai Rubinstein – pianist, conductor, founder of the Moscow Conservatoire, and brother of Anton Rubinstein. Upon Pyotr Jurgenson's death in 1904, his sons, Boris Petrovich Jurgenson (1868–1935) and Grigory Petrovich Jurgenson (1872–1936), inherited the firm and Boris became its new head (Pyotr Ilyich Tchaikovsky was Boris's godfather). The firm was a privately owned Russian company from 1861 to 1918.
In 1868, Jurgenson published Tchaikovsky's first composition, and henceforth, nearly all of his other works. In Tchaikovsky's early career, Jurgenson gave him supportive commissions, including some for piano transcriptions, orchestrations, and translations of works by others. Jurgenson's zeal to publish Tchaikovsky's works, even when it involved taking on considerable financial risks, earned his loyalty. A few of Tchaikovsky's compositions from the 1870s were published by other firms, including V. Bessel and Co. and Nikolai Bernard. But, by 1880, Jurgenson secured exclusive rights to publish Tchaikovsky's works, worldwide. The collaboration between Jurgenson and Tchaikovsky left a prolific trail correspondence that serves as a critical source for music scholars researching the composer's creative life.
In 1918, the company was nationalized by the communist regime, as were all other music publishing companies, into a division of the State Publishing House. That same year, Boris Petrovich became the head of the musical division of the State Publishing House. The music division, in 1930, was renamed Gosudarstvennoye Muzykal'noe Izdatelstvo (Государственное музыкальное издательство) — translated as State Music Publishing House, referred to by its short name, Muzgiz, then, in 1964, referred to as Muzika (or Muzyka or Музыка, in Russian).