Of one's own free will (9)
I believe the answer is:
voluntary
(Other definitions for voluntary that I've seen before include "Famous trumpet piece" , "Without compulsion" , "without pay" , "organ performance" , "Done without payment" .)
I believe the answer is:
voluntary
(Other definitions for voluntary that I've seen before include "Famous trumpet piece" , "Without compulsion" , "without pay" , "organ performance" , "Done without payment" .)