Does Not. Nor does the find command. I'm pretty confident the file is not being created. Am guessing that the statement is telling me what is supposed to be happening as opposed to what has happened:
en-ffmpeg -i "/var/folders/X2/X2KGhecyG0aQhzRDohJqtU+++TI/-Tmp-/tmpH1Nb0m.wav" -y -ab 128k -ac 2 -ar 44100 "HereComeTheDrumBang.mp3