“A Sphere In The Heart Of Silence” is the fifth album in a series of six solo efforts that John Frusciante undertook from June 2004 to February 2005. It is an album of mostly electronica based material, and was a joint collaboration between John Frusciante and Josh Klinghoffer. Both of them perform vocals; John Frusciante sings lead vocals on “Afterglow”, “Walls” and “My Life”, and shares vocals with Josh Klinghoffer on “Surrogate People”. Josh Klinghoffer performs lead vocals on “Communique”, “At Your Enemies” and does the backing vocals for “Walls”.
