There are at least 2 bands called Hole in the Wall: 1) Grindcore band from Istanbul, Turkey. Released a demo called "Leach" in 1993. 2) Norwegian band founded in the 1970's. Their music style blends early seventies progressive and blues rock with a strong folk influence. Some of the instruments used include violin, cello, mandolin, dobro and hand percussion. "10 000 People" and "Restless Man" are two of their better known songs. Read more on Last.fm