Is “Sonata” a Scrabble word?
Yes
SONATA
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 Sonata
/səˈnɑːtə/
noun
1.A musical composition for one or a few instruments, one of which is frequently a piano, in three or four movements that vary in key and tempo.