On 1/17/25 08:34, erik simpson wrote:

On 1/17/25 4:31 AM, John Harshman wrote:

On 1/14/25 5:13 PM, erik simpson wrote:

I've just finished reading "Macroevolutionaries" by Lieberman and
Eldredge.  I recommend it highly.  It's a history extending from the
beginning of the 19th century to the present of the evolution (no
pun) of the gradual development of our understanding of evolution
itself. One of the punctuations (pun intended this time) is the
brilliance of SJ Gould.

Some of the more funny chapters involves the evolution of trumpets,
replete with a mass extinction of valveless trumpets around 1820,
rapid diversification and eventual slower evolution to the present
day. Clades can be identified. It seems that biology isn't the only
thing that "only makes sense as evolution".

How do slide trombones fit into the phylogeny? And are horns featured?
Presumably they developed valves at around the same time.

Trombones were only morphologically different.  Horns were like
trumpets, but differed in having three different types of valves so
there were even more clades than trumpets.

So. Double checking.

The music of the spheres is minor mode, right?

This is because 1.5 times the frequency of c is f
sharp or g flat, and is neither f nor g?

(An 'octave' actually has seven notes and not
eight, but is actually 7 + 5 (twelve tones).)

Correct?

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On 1/27/25 20:37, erik simpson wrote:

On 1/27/25 2:21 AM, x wrote:

On 1/17/25 08:34, erik simpson wrote:

On 1/17/25 4:31 AM, John Harshman wrote:

On 1/14/25 5:13 PM, erik simpson wrote:

I've just finished reading "Macroevolutionaries" by Lieberman and
Eldredge.  I recommend it highly.  It's a history extending from
the beginning of the 19th century to the present of the evolution
(no pun) of the gradual development of our understanding of
evolution itself. One of the punctuations (pun intended this time)
is the brilliance of SJ Gould.

Some of the more funny chapters involves the evolution of trumpets,
replete with a mass extinction of valveless trumpets around 1820,
rapid diversification and eventual slower evolution to the present
day. Clades can be identified. It seems that biology isn't the only
thing that "only makes sense as evolution".

How do slide trombones fit into the phylogeny? And are horns
featured? Presumably they developed valves at around the same time.

Trombones were only morphologically different.  Horns were like
trumpets, but differed in having three different types of valves so
there were even more clades than trumpets.

So.  Double checking.

The music of the spheres is minor mode, right?

This is because 1.5 times the frequency of c is f
sharp or g flat, and is neither f nor g?

(An 'octave' actually has seven notes and not
eight, but is actually 7 + 5 (twelve tones).)

Correct?

I'm unfamiliar with the music of the spheres.

I am thinking that the 'music of the spheres'
refers to Pythagoras.

As for the octave, it's the interval specified by doubling or halving in frequency.  In a well-temepered scale there are 12 equally spaces half-tones, with the octave being the next.  Modal scales (generally archaic) have different spacings.  I'm not familiar with then either.

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