Tony MacAlpine is an American musician and composer. In a career spanning four decades, he has released twelve studio albums. MacAlpine is best known as an instrumental rock and heavy metal solo guitarist, although he has worked with many different bands and musicians in guest appearances and collaborations.

Edge of Insanity is the first studio album by guitarist Tony MacAlpine, released in 1986 through Shrapnel Records. In 2014, nearly thirty years after its release, MacAlpine performed the album in full during a series of shows in California and Baja California.