Low-gain opamp

[Rob Strand]

I would beware of the 220 pF capacitors to ground from the inverting inputs on both stages, especially the first where there is no corresponding capacitor across the feedback resistor.  This reduces the feedback at high frequencies and can cause oscillation where the rising gain given by this reduction of feedback meets the falling open-loop gain of the op amp itself.  This capacitor needs to be isolated by adding resistance between it and the inverting input or by eliminating it entirely.  I concur with those who have said there is too much gain in this circuit for it to behave without extensive shielding and this gain really does not do much musically.

Indeed.  It might be appealing to the eye but it's not the same as the non-inverting case at all.