"Praise to the White Poplar" is a musical work that expresses the people's memory and admiration for the martyrs of the motherland. It uses a deep and impassioned musical language to sing the people's praise for the heroic feats. Therefore, you can choose some matching pure music, such as:

1. Beethoven's "Ninth Symphony" is a good choice.

2. Tchaikovsky's "1812 Overture" is also very suitable.

3. "Polville" can also be used as a soundtrack, but please note that this piece may not fully express all the emotions in "Praise to the Poplars".

In addition, "Dream Chaser" can also be used as an alternative. These tracks can create a solemn and passionate atmosphere for "Praise to Poplar".