Here is the normal musescore version with the proper instruments and here is the "piano-ed" version where the instruments' sounds are replaced with piano sounds since I find that makes it easier to follow along.
Understanding Mahler's Fifth Symphony
Part 4: III - Scherzo
0:00~0:41 Theme A (D major)
0:41~1:16 Theme B (B minor->D major)
1:16~2:25 Variations on A and B (D major->B minor->B-flat->A major->D major)
2:25~3:20 Trio (B flat major)
3:20~4:07 Variations on A and B...