ARCHIS is the artistic pairing of singer/songwriter Dia Frampton and Joseph Trapanese, a film composer and conductor known for his collaborations with Daft Punk on the “Tron” score and M83 on the score for “Oblivion.” Other artists have performed their albums with the backing of a symphonic orchestra, but few have written songs with the sole intent to merge the rich, textured instrumentation of horns and strings to pop vocals.