Impulse Nine Impulse Nine on ionsonic Progressive Rock Steve McMackin USA: Arizona (AZ) Impulse Nine is an instrumental post-rock and ambient music project. Its signature sound is a guitar-driven and textural; alternately shimmering and towering, a blend of the best of post-rock,... ionsonic indie music charts,indie music,indie music index,latest indie songs,indie music downloads,free indie music downloads, indie mp3 downloads,new indie music,daily indie music charts,indie music artists,indie bands,best indie music