Whilst adjusting frequencies to compensate, the reality is the over-focus on bass and drums, since, the deaf 'follow' little else. There seemed little attention to issues of the physical effects of too much bass on the body, which deaf rely on to follow the music. If you can 'feel' BASS hitting your body and affecting your heart rate and making you vomit too, then this suggests some warning should be issued to deaf people. Bass can affect internal organs by over-exposure as can drumming affect your hearing if the frequency isn't set correctly. Most drummers have hearing loss!