Duetino or Duettino: How To spell?
The word Duetino is misspelled against Duettino, a noun meaning "A duet of short extent and concise form."
Duettino has double "tt" is mispronounced as "t"Remember double 'TT' in between the strings due & ino which should not be misspelled with single 'T'
Wrong Spelling:  due-t-ino  Correct Spelling:  due-tt-ino 
Check more misspelled words of Duettino to spell it correct.