As far as Winterreise is concerned one might as well check Anders with Raucheisen (1945).
From the DG Booklet
Despite the devastation caused by the war, there were concerts in Berlin even as late as April 1945. Early that month there were several concerts in the Schauspielhaus with Tiana Lemnitz, Lieselotte Enck, Gertrud Runger, Helge Roswaenge, Peter Anders and Jaro Prohaska. On April 13, Lore Hoffmann, Gunther Treptow and Leopold Ludwig from the 'Deutsche Oper' gave their last concert in the Beethovensaal and on April 15, Tiana Lemnitz, Ludwig Suthaus and Jaro Prohaska gave one final concert in the Gendarmenmarkt with excerpts from Verdi's Otello. The next concert had been planned for April 21, but did not come about. On its way from Wannsee to Berlin-Mitte the municipal railways capitulated unconditionally. Those travellers who had set out for the concert had to walk home. Berlin was already under Russian artillary fire. Ten days later the capital capitulated.
After the closure of all German theatres in July the Reichsrundfunk continued its work even more intensively than before - until March in fact. The leading singers of the great opera houses were now more easily available for productions as the regular repertoire theatres had ceased staging operas. Anyone not engaged in troop entertainment programmes appeared in concert recitals once or twice a week and was grateful for any additional engagement that preventend or at least delayed a draft to the front. The famous Berlin Rundfunk Martha production with Erna Berger, Else Tegetthoff, Peter Anders and Josef Greindl was produced in October 1944 and even in February 1945 some scenes from Entfuhrung aus dem Serail with Anders and Berger were recorded. Between July 1944 and March 1945 the legendary pianist/accompanist Michael Raucheisen called all those singers to the Rundfunk studios whose recitals he had enjoyed accompanying in the past few years. Erna Berger, Tiana Lemnitz, Hilde Scheppan, Margarete Klose, Martha Fuchs, Peter Anders, Karl Schmitt-Walter, Will! Domgraf-Fassbaender and Josef Greindl produced hundreds of Lied recordings in these 9 months. Most of the recordings survived the war and together with the opera and concert productions subsequently formed the basic repertoire of the "denazified" Rundfunk archive in the post WW II era.
One of the most popular singers in Berlin at the time was Peter Anders. In September and November 1944 he participated in some chamber music recitals in the Staatsoper. Rarely at that time was he heard in opera concerts, as he devoted most of his time to Raucheisen's Lied productions. Not all the recordings made at that time can be dated exactly. In November 1944 a complete Hugo Wolf cycle was recorded; for December 1944 Pfitzner lieder were scheduled, in January and February 1945 lieder by Marschner, Richard Strauss, Schumann and Richard Wetz were taped. The recording date of Peter Anders' legendary Winterreise was often assumed to be winter 1944. New research, however, has verified that the cycle was recorded on February 23, as well as March 2 and 13, 1945 - probably the last recording of the "Großdeutschen Rundfunk."
Despite the chaotic conditions in post-war Berlin, the singers tried to keep matters going somehow. The unconditional surrender declaration signed on May 8, 1945 ended the war. On May 22, 1945 Irma Beilke, Gunther Treptow, Karl Schmitt-Walter, Victor de Kowa as MC as well as the Orchestra of the Deutsche Opernhaus under Leopold Ludwig gave a concert in the Funkhaus, which, at the command of the Soviet General Bersarin, was transmitted to Moscow. On June 16, Erna Berger, Margarete Klose, Peter Anders and Ludwig Suthaus resumed concert activities for the Staatsoper, together with the Staatskapelle orchestra under Karl Schmidt. On September 2, 1945 the Deutsche Opernhaus inaugurated its first post-war season with Fidelio in the Theater des Westens. One week later the Staatsoper followed suit, now housed in the Admiralspalast. On September 10, Peter Anders sang Duca in the premiere of Rigoletto - his first opera appearance after the war. His success as a recitalist led to a Heinrich Heine mattinee together with Horst Caspar. On May 5, 1947 he sang the Winterreise in public for the first time, ironically being chided by Hans Heinz Stuckenschmidt in his critique for singing a 'Winterreise in spring'. Anders' subsequent success was overwhelming. Until his death in September 1954 he remained a favourite with the Berlin concert and opera public, even though he had moved to Hamburg in 1947 and sang Stolzing, Siegmund, Florestan, Andr, Chenier and Otello there. Peter Anders was one of the few Heldentenors to retain his vocal limpidity even in heroic parts.