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Good Piranha / Bad Piranha is a modern jazz album by Wayne Krantz. The album consists of four songs played in two separate sets with two intertwined trios. Songs themselves are only being thematically utilized as vehicles for improvisation, containing only main themes from the original songs with everything else being completely improvised. Krantz elaborated on this in the liner notes of the album
"Did some cover nights a while ago at 55 Bar. Realized it didn’t matter what songs we play, we still do our thing. These songs are fine, but it could have been anything. Went into the studio for 2 days, cut loose. Still like playing guitar.”