A2c 横山厚 Yokoyama Atsushi Born On February 11 1979 In Tochigi Japan Is A Japanese Composer Arranger Musician And Lyricist. He's Best Known For Being A Member And The Co-Founder With Setzer Of MintJam As Well As A Member Of G5 Project. The Stage Name A2c Might Be A Pun On Yokoyama's First Name As "Atsushi" And "A-Two-C" Are Almost Pronounced The Same In Spoken Japanese.