This is a sad and melancholy duet, it has piano and is subtly accompanied by a cello. It begins with a haunting yet beautiful piano melody that then transfers into a sad and simple cello melody line. This track would be good for documentaries, sad montage scenes in a film, symbolizing death, or anything on a darker and sadder side.
The tempo is Rubato and fluctuates a little bit. It starts out around 68 then slows down to around 54 BPM