Actually, I will be bold:
The composer is Vincent D’Indy (1851 – 1931), a stubborn classicist who refused to follow his contemporaries into composing “modern music”
The piece is “Symphony on a French Mountain Song”. (or “Symphonie Cevenole”) The title is misleading because it is not really a symphony, but more of a piano concerto, even though the piano is not set agasint the orchestra, but features as anther instrument.. The third movement has brilliant piano and harp passages, and it is d’Indy’s most important work.
My most important clue however, came from another thread where xvimbi mentioned this composer, so I knew he liked him.
(Don’t tell me I ‘m wrong!

)
Best wishes,
Bernhard.