The term "ghost" encapsulates a lot of ideas. Poltergeists, dead relatives, revenge bent evil spirits, lonely souls with unfinished business, Casper, pixilated Pac-Man enemies… anyway, Brooklyn band Ghost Ghost is like that, in a way. They encapsulate a lot of genres, though they choose to define themselves as freak-folk. Kevin Peckham (vocals, bass, keys) and Karl Ward (vocals, percussion, guitar) lead a mixed bag of musicians and artists on a journey that is both strange and familiar. It would be like seeing a phantom band led by Jeff Buckley and Jerry Garcia fronting a jammy, catchy blend of gentle spirits. Channeling influences as diverse as The Mountain Goats to Leonard Cohen, Ghost Ghost will be at The Knitting Factory on Saturday July 30. Check out their music here. – allison levin