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.