Although Ptolema answers to the genre classification of grunge, this act also features violin in its mix, which gives the group's hard rock mojo a distinctly Eastern European folk vibe, as well. One titled "Isolated" even opens with nothing more than Da Costa's voice, set against strummed acoustic guitar. Another, called "Run," finds Da Costa singing bluesy, and set against violin notes. These unusual sonic combinations give Ptolema a slightly exotic feel, which raises its music above most of what's out there now. "Run" also features both a guitar and a violin solo, which gives the track added variety.