--- In FairfieldLife@yahoogroups.com, cardemaister <no_reply@...> wrote: > > > BTW, listen to a genuine(?) *harmonic* seventh of blues, which, > I believe is impossible to play on a piano: > > http://upload.wikimedia.org/wikipedia/commons/d/dd/Harmonic_seventh_on_C.mid > > To me, that sounds almost intoxicating. > > http://en.wikipedia.org/wiki/Harmonic_seventh >
Wiki: "An interval close in frequency is the harmonic seventh, or septimal minor seventh,[9] with an exact 7:4 ratio (i.e., 1.75), which makes it quasi-harmonically significant. This interval is about 969 cents, or one-third of a semitone flatter than the equal-temperament minor seventh (1000 cents)." Just split the keyboard of my digi-piano, let the left side be, and lowered the right side 31 cents, to get the "genuine" blues harmonic seventh. Then played C on the left side and Bb on the right side, simultaneously. Did I get it right?
