All just my personal opinion
Robert Schumann’s Cello Concerto in A minor, op.129, in the new recording with Jean-Guihen Queyras and the Freiburg Baroque Orchestra, directed by Pablo Heras-Casado, compared to legacy recordings with Gregor Piatigorsky & Sir John Babirolli / London Philharmonic Orchestra (1934) and Mstislav Rostropovich & Gennadi Rozhdestvensky / Leningrad Philharmonic Orchestra (1961)
Robert Schumann’s Violin Concerto in D minor (WoO 1 [H/K WoO 23]), in the new recording with Isabelle Faust and the Freiburg Baroque Orchestra, directed by Pablo Heras-Casado, compared to a recording with Christian Tetzlaff and Paavo Järvi / RSO Frankfurt
Schumann, Symphony No.1 in B♭ major, op.38 — comparing 5 recordings: Bernstein / Vienna Philharmonics (1984); Harnoncourt / Chamber Orchestra of Europe (1996); Gardiner / Orchestre Révolutionnaire et Romantique (1997); Zinman / Tonhalle Orchestra Zurich (2004); Dausgaard / Swedish Chamber Orchestra Örebro (2007)
Schumann: Liederkreis op.39, Dichterliebe op.48 — comparing recordings with the following artists: Fischer-Dieskau/Moore (Live, 1956), Fischer-Dieskau/Brendel (1986), Goerne/Schneider (1998), Terfel/Martineau (1999), Wunderlich/Giesen (1965), Bostridge/Drake (1997); notes about related recordings
Lieder recordings (Beethoven & Schumann) with Fischer-Dieskau/Moore, Wunderlich/Giesen, Goerne/Schneider, Terfel/Martineau, Bostridge/Drake; Schumann: Piano Quintet op.44, Piano Quartet op.47 — Melnikov/Jerusalem Quartet, Levine/LaSalle Quartet; Webern: 6 Bagatellen, 5 Movements for string quartet, op.5 — Hagen Quartett
Schumann: Novelletten, op.21 — Richter; Myaskovsky: Cello Sonata Nr.1 in D, op.12 — Mørk/Thibaudet; Rachmaninoff: Vocalise from the 14 Songs, op.34 — Isserlis/Hough; Rachmaninoff: Cello Sonata in G minor, op.19 — Mørk/Thibaudet, Isserlis/Hough; Franck: Violin or Cello Sonata in A — Spivakov/Bezrodnyi, Perlman/Argerich, Isserlis/Hough