Hi liquidorb.
You could consider a simple mike, op amp, rectifier, led driver circuit.
The mike located as close a possible, to say, the base of the drum, amplify the sound, rectify the analog sound waves, then connect the 'dc' via an
amp into your led circuits.
The rectified dc signal will be approx prop to the sound intensity and freq.
You could add freq filtering circuits in the amplified analog signal to 'pick out'
freq's of interest, to boost or mute.
Regards
EricG