Bassonist or Bassoonist: How To spell?
The word Bassonist is misspelled against Bassoonist, a noun meaning "A performer on the bassoon."
Bassoonist has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings bass & nist which should not be misspelled with single 'O'
Wrong Spelling:  bass-o-nist  Correct Spelling:  bass-oo-nist 
Find more incorrect spellings of Bassoonist to spell right way.