Play sound when volume has been ejected

[michaelotto]

I would like to be able to have Ejectify play a sound when the volume has been successfully ejected.

Reason: Sometimes the ejecting process takes longer than expected. When I then switch off my monitor (and thereby cut off the power to the external hard drive), I get the dreaded "Disk not ejected properly" notification when switching the Mac back on.

Waiting for the sound before switching off the monitor would solve this.