Periastron (for bass clarinet and electronics) - Gráinne Mulvey by Marcella Barz published on 2017-08-12T15:38:48Z Periastron for bass clarinet and electronics. Composed in 2010 by Gráinne Mulvey. Live performance by Marcella Barz in Dublin - February 2017. Genre Contemporary Comment by Joe O'Farrell Great performance! 2018-03-31T13:29:03Z