The Batman Theme Song Sung by Bats

I guess it was only a matter of time. Here's the original Batman theme being sung by actual bats. This was created by YouTuber Sándor Seuntjens, and here's a note that came along with the video,

Bats produce sounds that are not audible to human ears. First these ultrasounds were digitally reduced to frequencies that are audible. Then the different batsounds were assigned different keys on a keyboard. On this keyboard - the only real Bat-Organ - Ulrich Seidel played the Batman Theme.

Listen to it below while watching the strangely edited video created to go with it.