American Interior is the fourth solo album by Gruff Rhys, released on 5 May 2014. It is a concept album based on the life of the explorer John Evans. It peaked at number 24 in the UK. Track listing Personnel Gruff Rhys - vocals, bass, acoustic guitar, percussion, keyboard, synths, production, mixing Ali Chant - production, engineering (Toybox), mixing, timpani on "The Swamp" Mike Mogis - engineering (Arc Studios) Kris Jenkins - engineering (Wings for Jesus) Andy Votel - production on "Allweddellau Allweddol" Guy Davie - mastering Gruff ab Arwel - string arrangements Kliph Scurlock - drums on "American Interior", "100 Unread Messages", "The Whether (Or Not)", "The Last Conquistador", "Lost Tribes", "Iolo" and "Walk Into the Wilderness" Chris Walmsley - drums on "Liberty (Is Where We'll Be)", "The Swamp", "Year of the Dog" and "Tiger's Tale" Osian Gwynedd - piano Jonathan Thomas - bass on "The Whether (Or Not)" Alun Tan Lan - electric lead guitar on "100 Unread Messages", "Year of the Dog" and "Tiger's Tale", electric mandolin on "American Interior" Lisa Jen Brown - harmony vocals on "100 Unread Messages" Mari Morgan - violin Francesca Simmons - violin Rebecca Homer - viola Elen Ifan - cello Maggie Bjorklund - pedal steel guitar on "Liberty (Is Where We'll Be)", "Year of the Dog" and "Tiger's Tale" Pete Fowler - artwork and design Dylan Goch - photography Ryan Owen Eddleston - photography Critical reception The album was well received by critics. References 2014 albums Gruff Rhys albums Concept albums Welsh-language albums Albums with cover art by Pete Fowler