 In 1994, he released a duo album, "Invisible Threads", with longtime friend Andy Summers (a former Soft Machine guitarist, albeit in a much earlier incarnation of the group), and did a world tour with him.The duo recorded the album using only acoustic guitars and acoustic bass.The same year, Etheridge released his first solo album, "Ash", mostly featuring his regular band at the time - Steve Franklin on keyboards, Henry Thomas on bass and Mark Fletcher on drums - as well as duets with bassist Dudley Phillips.