['classical music', 'no singer', 'instrumental', 'piano', 'theremin', 'emotional', 'unique', 'eccentric', 'heart-touching']
This is a classical music performance. There is a gentle piano tune playing in the background while there is a theremin playing the main melody. The performance has a unique feel to it. The atmosphere is out of the ordinary but also heart-touching. This piece could be used in the soundtrack of an animation movie/TV series.