distorted guitar is good for you

[tamahome]

( from http://zynaddsubfx.sourceforge.net/doc_0.html )

For example, the hard distorsion (as you hear in hard-rock music) has the tendency to produce overtones with same bandwiths on all frequencies or smaller bandwith on higher frequencies(perhaps this is the cause why it is so destructive).

I have to disagree. Distorted guitar can be truly healing! Great synth though.