Mechanical Reverb

If you listen to the recordings in the previous two posts, The Works of God and Lyre Lyre Pants on Fire, you may notice some reverb on the lyre... but, there's no post production reverb there at all (or any other effects aside from a little compression).

As you can see in the picture, there's a spring mounted inside the lyre's sound box. One end is attached under the bass foot of the bridge. The other end is attached to the back. This causes a vibration in the back mediated by the spring - in other words, reverb.

Thanks to Shane Speal for showing me this technique.