The Post about Tutmarc was incomplete, that's all.
Tutmarc was trying to develop
the ultimate lap-steel, 'cause he was constantly being drowned out by the rest of his band. In his blind rage-quest for vengeance, revenge, and re-vengenance against his bandmates, he failed to realise he got his lap-steel stem-cell growth serum mixed up with his wife's plant-food formula which she'd been using to tend to the lab's plants (trying to give the lair a more homey touch). The Steel Growth Serum and Cellulose Food Formula DNA streams crossed, and we all know what happens when you cross the streams...
It was likely the total protonic reversal that actually created the fretted bass monster, nobody could've predicted the results of a bass so bad, so evil that it would take over the world of music and beyond.
Or ... wait, no! Could it be? He knew ... maybe ... ALL ALOn—AIAIAIAAIIAIAEEEUUGGHHH — NO?! PLEASE STOP! I DIDN'T KNOW WHAT I WAS SAYING! NOBODY ON THE FORUM WOULD BELIEVE ME! YOU DON'T HAVE TO KILL ME I HAVE A WIFE AND CAT PLEEEE