Underground gabber or real gabber refers to non-commercial gabber music created mostly for artistic expression and not for monetary purposes. Some underground DJs, after some years off of the non-commercial stage, did find a way to make money through their music and even began to change the music style to rave, trance music, hip hop music or happy hardcore. This was partly the product of discovering new musical skills and also because of different music influences. This situation caused some underground gabber fans to name their music real gabber instead of gabber.