This seems to work almost perfectly except that the lower portion of the wave form is longer than the top.

It also has a much higher mean voltage than the input (20-200nV in, 15mV out)

not really sure what to make of it but the one design I used with dual rail power supply and an LM358 resulted in an indentical waveform output just doubled in voltage.

The LM124 seems much more practical for my purposes but this deformed wave pattern has me bothered on how it would affect the functionality of the drum brain.

 

This seems to work almost perfectly except that the lower portion of the wave form is longer than the top.

It also has a much higher mean voltage than the input (20-200nV in, 15mV out)

not really sure what to make of it but the one design I used with dual rail power supply and an LM358 resulted in an indentical waveform output just doubled in voltage.

The LM124 seems much more practical for my purposes but this deformed wave pattern has me bothered on how it would affect the functionality of the drum brain.

Your input goes below ground, which means the output will try to go below ground. This is what causes the distortion. The output cannot exceed the supply rails (0V and +5V in your schematic).
If you want to run simulations, try a positive pulse waveform with a zero volt baseline. Forget about the sine waves. A piezo struck by a drum stick does not produce sine waves, although the design I posted earlier does produce a damped sinusoid, superimposed on a pulse.

 

Alright I see what your saying about it dropping below ground, I cant seem to get away from a dual rail supply while preserving wave that drops below the (reference?)

Would there be a way to get a negative voltage from a single rail supply? some kind of reverse rectification?

 

I don't know how to put a postive pulse with 0V baseline...... Not sure if multisim has such a component, but I'm sure there would be a way to do it given the price of the software, I just don't know how.