German cellist and pianist living in Lisbon, Ulrich Mitzlaff recorded these two solo works titled "transparent — fluorescent sound fibers" #1 & #2 in 2015 and 2020, each voiced for extended and unusual instrumental technique in an interaction with percussive objects, the first from 2015 performing on cello, the second from 2020 performed on piano.

German cellist and pianist living in Lisbon, Ulrich Mitzlaff recorded these two solo works titled "transparent — fluorescent sound fibers" #1 & #2 in 2015 and 2020, each voiced for extended and unusual instrumental technique in an interaction with percussive objects, the first from 2015 performing on cello, the second from 2020 performed on piano.