This is a different version of a traditional Dutch  children’s song, where little hares get shot in a green turnip field:

Little Hares

In a green green turnip field
Two little hares were elegant
One was playing the flute
The other was hitting the drums

This time they play the piano (elegant too)
In the green green turnip field
Careful one touches the keys
The other feels the vibration of the strings

Where could the hunter be
In the green turnip field?
He does not shoot the pianist
Who is trying so hard