Three brothers Grinbergs – Mikelis 7 years, Ansis – 12 years old, Karlis – 14 years old. They learn music at Bolderaja Music and Art school. Boys have set up their own band ” Grinbergs brothers”. The brothers include in their repertoire various popular melodies that they arrange and play themselves. They also make up their own compositions. Boys play marimba, a drum set and several percussions.