Added a comment explaining why an exception might get raised.
Added a comment explaining why an exception might get raised.

DouglasHeriot/MIDIApps,DouglasHeriot/MIDIApps,krevis/MIDIApps,krevis/MIDIApps,krevis/MIDIApps,krevis/MIDIApps,DouglasHeriot/MIDIApps,krevis/MIDIApps