Niccolo Paganini as a boy in the act of playing the violin Giovanni Pezzotta (1838-1911)

The picture has something of this: people, music, wear, portrait, child, man, musician, pants, two, woman, instrument, lid, jacket, son, seat, boy.
Perhaps it’s a painting of a boy in a white suit holding a violin in his right hand and sitting on a chair in front of a painting easel.