Add a "verbose mode" as to see chord changes that were possibly lost/overlooked.
I assume that your chord finding algorithm has a minimum required length of sustain before it registers the sound as a chord.
To have a way (presets or a slider bar) to control how sensitive this detection is.
Dear Matt, Thank you for your suggestion, we greatly appreciate it! I declined your issue, because it is (more or less) a duplicate of http://chordify.uservoice.com/forums/179340-general/suggestions/3860370-since-it-s-automatic-you-should-allow-human-touch If you have additional suggestion, you can add them as a comment. Thanks again!