Composer Michael Ippolito tried an unusual approach when he wrote a piece for the Altius Quartet. He sat down with a cello, instrument he'd barely played since middle school. His experiments with an instrument he’d largely forgotten how to play took his music to surprising places. Hear Michael Ippolito’s String Quartet No. 4 performed by the Altius Quartet in the CPR Performance Studio -- and the backstory of this new piece -- in this episode of Centennial Sounds from CPR Classical and Colorado Public Radio.