Bluetooth MIDI in OS X Mavericks?
Bluetooth MIDI in Yosemite (and up) Only

You cannot use Bluetooth MIDI in OS X Mavericks as it is not supported.  Bluetooth MIDI was implemented in Yosemite.  For more info, see https://developer.apple.com/library/ios/qa/qa1831/_index.html


  but I see nothing that actually states it cannot function on Mavericks.


It is very unlikely that you are going to see a statement from Apple stating that an OS three versions back specifically doesn't support a feature that was introduced in an OS that one version back.  Features that are listed are what's supported, not listed as to what's not.