Is “Concertino” a Scrabble word?
Yes
CONCERTINO
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Concertino
noun
1.A short concerto.
2.The group of solo instruments in a concerto grosso.
3.A section in a concerto grosso played by three instruments.