In 2017, audio producer Phil Smith travelled to Ukraine to attend his friend's wedding. There, somewhere between the cities of Ivano-Frankivsk, Lviv and Odessa, he fell in love with the soundworld of the sleeper train: its steady hypnotic rhythms, the melody of hurtling through time and space,...

Relax with a mix of music and natural sounds, recorded by Radio 3 Sunday Breakfast listeners. Three dawn choruses from across the UK, starring woodland, garden and sea birds, follow on from the very different dusk chorus from the remote Greeenland town of Ilulissat, which features hundreds of...