Burned into the Orange Music of Peter Gilbert Arditti String Quartet; Iridium Quartet, Emmanuele Arciuli, piano; et al.  New Focus Records CD/DL   This is composer Peter Gilbert’s second recording for New Focus; the first was back in 2008, The Long Arch of Undreamt Things. He is Associate Professor of Music at University of New Mexico, and has a long artistic pedigree filled with prestigious residencies, performances, and awards. There is a visceral character in Gilbert’s music that distinguishes it, and in his recent music it appears that geography plays as much of a role as any of the aforementioned