TMG Guitar Co. SelmaMeet the Selma Transparent Overdrive. TMG Guitar. co is not just made up of guitar builders, we are also active players of all types of venues. Just like the rest of the players, we have always longed for the same thing every other guitarist has been searching for a truly transparent overdrive pedal. We've tried every overdrive on the market only to be disappointed by the unnatural color they added to the amplifiers natural tone and feel. I wonder if