This Graham Nash CD album, with the early 70's song, "Chicago" (We Can Change The World) was mastered or remastered by Doug Sax. The BASS blew my mind, unbearable to my ears, way too much! Anyway, this is interesting, a Before and After snapshot of the song waveform. The Before is as-is...
http://www.angelfire.com/empire/abpsp/chicagob4.png
The After is a result of decreasing the 60Hz. frequency band by 8 DB, then (amplitude) Maximizing the waveform. It now looks normal and my ears are happy!...
http://www.angelfire.com/empire/abpsp/chicagoaftr.png
Pretty swift, eh??!!
Jack