"Hi Gary, you might try exporting from Finale to AIFF or WAV and then using the link on the home page of this site to convert to MP3 (it's on the left side of the page, about a 3rd of the way down).
"To look to the future, examine the past. Music writing as we know it began around 1200 AD. We don't know whatGreek music sounded like-only the emotions it invoked. Writing began with a single line representing Middle C or whatever…"