Diatonicaly or Diatonically: How To spell?
The word Diatonicaly is misspelled against Diatonically, an adverb meaning "In a diatonic manner."
Diatonically has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings diatonica & y which should not be misspelled with single 'L'
Wrong Spelling:  diatonica-l-y  Correct Spelling:  diatonica-ll-y 
Find more incorrect spellings of Diatonically to spell right way.