From: "Glenn Meadows" 

Most people don't give a hoot about those with good pitch sense.  Yea, it
does up the pitch, but that's part of the allure I guess.  It's all
"relative".  If everything on a given station is sped up X%, then
the songs relative to each other sound correct.  It's typically not done on
a song by song basis, but to the whole overall music, all selections.

There are tools that will "time compress", which can speed things
up, but keep the pitch the same.  The work OK, depending on the material. 
On many kinds of music you can hear the time splices being done.  It's also
very CPU intensive (or DSP intensive if it's done in a dedicated DSP chip).

--

Glenn M.
"Ellen K."  wrote in message
news:f4k2q2hmuhodpt7td73iobki9bbfhnvn60{at}4ax.com...
> Well, yes, turning faster would of course increase the tempo... but I
> was thinking it would also increase the pitch and wondering whether that
> would discombobulate folks with a good sense of (if not perfect) pitch.
> I think pitch is what you mean when you say the key goes up a full
> musical step, but speeding up from 45 to 48 rpm probably wouldn't up it
> that far, pitch-wise the music would be in no-man's land.
>
> Digressing somewhat, actually C-sharp and D-flat are not supposed to be
> the same pitch although since the advent of the modern piano everybody
> except strings treats them the same.  I believe in the age of
> harpsichords the instrument would be tuned for the key of the work that
> was to be played so as to generate the true pitches.
>
>
> On Sun, 7 Jan 2007 09:45:11 -0600, "Glenn Meadows"

> wrote in message :
>
>>That's the idea.  Once people get used to the "up" tempo
of the music, the
>>other stations sound "down", or lethargic.
>>
>>Speedup of music is addictive psychologically, especially when it's done
>>subtly.  Some records can sound like Mickey Mouse (or the chipmunks) if
>>sped
>>up even a bit.  Others, can take a huge speedup.  I've gone so far as even
>>moving the speed such that the key goes up a full musical step.  That's  a
>>large speed kick.
>

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