ABCDEFG continues the five-person line up of Lou Watts, Jude Abbott, Neil Ferguson, Boff Whalley and Phil 'Ron' Moody.
The album's lyrical content focuses mainly on themes to do with music and singing.
"Wagner at the Opera" refers to a concentration camp survivor who disrupted a Wagner recital by swinging a football rattle.
^"Chumbawamba – Guest Editors". Spiral Earth. 22 February 2010. Archived from the original on 7 March 2010. Retrieved 7 December 2011. [...] James Hetfield comes out and says he’s proud their music has been used to torture Guantanamo prisoners “It represents something that they don’t like—maybe freedom, aggression… I don’t know… Freedom of speech.“ Although he thinks music and politics don’t mix – obviously. So writing a song about torturing James Hetfield with Chumbawamba’s music was irresistible.
^Appleby, Stefan (9 March 2010). "Chumbawamba ABCDEFG Review". BBC Review. BBC. Retrieved 7 December 2011. [...] and the wonderful image of Metallica's frontman being tortured by listening to Chumbawamba at ear-splitting volume (Torturing James Hetfield) [...]
^"Boff Whalley: Chumbawamba Interview". The New Significance. 29 July 2011. Archived from the original on 4 February 2013. Retrieved 7 December 2011. I have a few [personal favourite Chumbawamba songs], I think. [...] And ‘Torturing James Hetfield’ [...]