I recall decades ago Bud Fried(IMF and Fried speakers) told me the hardest instruments to get right in order are male voice, female voice and piano. Voice because we are so familiar with it and male voice is harder because it goes lower than female where speakers often do poorly. Piano because it is wildly dynamic, sudden peaks of 39 dB and more. So I would find opera with both voices and and orchestra to reproduce and separateerful choice. and a powerful piano concerto another pow
