This article examines cross-relationships and mutual influences in the D-minor symphonies and concertos written in the 1850s by a close-knit circle of composers: Johannes Brahms, Robert Schumann, and their friends Joseph Joachim, Julius Otto Grimm and Albert Dietrich. Outlining the overlapping compositional timelines of Brahms's First Piano Concerto (at one point a candidate to become his first symphonic work), the violin concertos of Joachim and Schumann, and the symphonies of Grimm and Dietrich, it demonstrates that the pieces were shared among the composers during their periods of composition and explores musical correspondences indicating mutual influences both among the composers and from other specific works. The musical choices involved in this group of pieces seem to point to an underlying backdrop of Beethovenian influence involving specific works from Beethoven's body of orchestral music, an oeuvre concluding with an unforgettable symphonic work in D minor—to which the younger generation's collection of works may relate symbolically. This study not only emphasizes the central role that Beethoven played in the minds of these composers in the mid-1850s, but also underscores the musical intimacy that extended from the social intimacy of the composers in the Brahms–Schumann circle.