The Hermes Experiment - an ever-innovative, exploratory and imaginative ensemble - have released their new album, Tree, a meditation on nature, memory and change embracing contemporary composers and reimagined music from the past. Two members of the group, soprano Héloïse Werner and clarinetist Oliver Pashley - who also both have compositions on the album - joined Editor Martin Cullingford in the Gramophone Podcast studio to discuss this beautiful release.