Once you have taken the top-40 cover bands out of the equation, the undisputed king of Columbus music is the jam band. Of the 30 or bands playing in Columbus on any given night, it’s a reasonable expectation that eight or nine of them will be jam bands, playing a brand of music that is now on its third generation.
What is jam band music, anyway? Basically, it’s rock music which observes the standard structure of verse/chorus/verse during times that vocals are being sung. When vocals are not present, however, a jam band runs through a song’s primary chord progression an undetermined amount of times while one or more members play improvised melodies. There are some predetermined arrangements (typically a short, recognizable guitar melody), but it is largely left to the winds of fate.
Or, according to their detractors, bands that play long-ass impromptu guitar solos which end only when the singer walks back up to the microphone or the drummer quits.