Jean,
Thank you for approving my email - I did subscribe using the website and confirmed the email (and have logged into my account page successfully) prior to sending my email to the list. Maybe I was impatient and needed to wait a day for the account setup to completely process.
Thank you all for catching my silly typo - it frequently takes a second set of eyes to catch those types of errors.
The reason I was using the ties inside the chord instead of on the chord as a whole is that, in the piece I am working on, there are frequently chords where not all notes are tied, so I was trying to be consistent in my coding pattern for all tied chords. I may rethink that decision.
Thanks again.