Symph #4 in A min, Op 63--I. Tempo molto moderato, quasi adagio • Whose Song?

Symph #4 in A min, Op 63--I. Tempo molto moderato, quasi adagio
is a song by
Pittsburgh Symphony Orchestra--Lorin Maazel, Cond
it was released on
Sibelius Symphonies 4 & 5