The Magician's Apprentice (Doctor Who) episode is a blue-and-silver model as first seen in 1963. Clara, upon deducing the Doctor's location and intent, says "Do not go gentle into that good night", the first line of the titular poem by Dylan Thomas. When the Doctor spies Clara and Missy, he plays the opening notes to Roy Orbison's "Oh, Pretty Woman". The Doctor's playing electric guitar and teaching medieval people the term "dude" echoes the movies "Bill & Ted's Excellent Adventure" and "Bill & Ted's Bogus Journey", films featuring two rocker teens who travel back in time – in a telephone call box – and teach
The Gentle Good was recorded in January 2016 and released on Bubblewrap in October 2016. Alongside regular collaborators, the album features Georgia Ruth on harp and backing vocals. The album was nominated for Welsh Language Album of the Year at the 2017 National Eisteddfod and in October that year won the Welsh Music Prize for 2016-2017. The Gentle Good has toured in the UK and performed solo and with a band in various festivals around Wales, including the Hay Festival, Calan Mai Folk Festival, The National Eisteddfod, Laugharne Weekend, WOMEX 2013 and Festival N°6; he's been a regular performer at the Green Man