Since you are interested in The New Sound of Maria Callas [3 CD set], here is a list of other items that you may find interesting.
AMY BEACH / CECILE CHAMINADE / DOROTHY HOWELL
Beach, Chaminade & Howell - Piano Concertos
Danny Driver (piano) / BBC Scottish Symphony Orchestra, Rebecca Miller
[ Hyperion Romantic Piano Concertos Vol 70 / CD - released 26/Feb/2017 ]
"but even more appealing is Cécile Chaminade's Concertstück in the same key as the Beach...In Driver's hands it is enchanting." Gramophone Award Nomination 2017 - Concerto
Bernstein On Broadway
Various Artists including Marilyn Horne, Kiri te Kanawa, Frederica von Stade, Thomas Hampson, June Anderson & Christa Ludwig
[ Deutsche Grammophon / CD - released 20/Apr/2018 ]
Leonard Bernstein was both a brilliant orchestrator and a gifted tunesmith, and his lyrics, often penned by Stephen Sondheim, are memorable, razor sharp and brilliantly apposite. West Side Story, Candide and On the Town are featured here.