Complex sentence: The self-produced debut album was engineered by Chris Kimsey, who had worked on Humble Pie's "Rock On", introduced a melodic sensibility that contrasted the raucous boogie that characterized Humble Pie sound, with a particular emphasis on Frampton's acoustic guitar work.
Split into simpler sentences: The self-produced debut album was engineered by Chris Kimsey, who had worked on Humble Pie's "Rock On". Kinsey introduced a melodic sensibility that contrasted with the raucous boogie that characterized Humble Pie sound, with a particular emphasis on Frampton's acoustic guitar work.