SOMM Recordings announces Volume 1 of Mahler Pioneers, a major addition to the Mahler catalogue with first commercial releases of historic performances of Das klagende Lied, Symphony No.4, and the Adagio from the Tenth Symphony. The two-disc set also features interviews with conductor Leopold Stokowski and former New York Philharmonic Orchestra timpanist Alfred Friese about their memories of Mahler in rehearsal. Recorded live in london's Royal Festival hall on 13 May 1956, Das klagende Lied is heard in its first-ever British performance with Walter Goehr conducting the London Symphony Orchestra, Goldsmiths' Choral Union and three luxury soloists: soprano Joan Sutherland - most probably the only known document of her singing Mahler- tenor Peter Pears, and contralto Norma Procter. Symphony No.4 was performed by Goehr, again with the LSO, and soprano Teresa Stich-Randall on 9 February 1960 as part of that year's Mahler centenary celebrations. Before the year was out, the committed Mahlerian Goehr was dead. The Tenth Symphony's Adagio dates from 21 November 1948, with Hermann Scherchen conducting the BBc Symphony Orchestra, anticipating Scherchen's recorded survey of Mahler's symphonies in the 1950s. Two revealing, never before issued interviews with Stokowski in 1970 and Friese in 1962, offer candid recollections of encounters with Mahler. Mahler Pioneers has been curated by historic recordings specialist Jon Tolansky, who also provides insightful and authoritative booklet notes.