Question- Im relatively new to theory so please bear with me but Im a little confused by this. When someone tells you that a certain chord is for example Cmaj7, they are referring to from what I understand as the 7th note in the major scale of C. So B. Why wouldnt they just say the chord is a B. Instead of a progression that looks like C-G-Cmaj7-D etc? Is this information more pertinent for guitar than bass and thats why it seems like its intentionally overcomplicated? I guess it would make it easier to transpose keys but youll still know that a B is the 7th tone in the scale regardless of how its listed. Any insight would be appreciated.