Tempo, Rhythm And Meter

It depends...

I can speak of the tempo of a sonata: I tempo, II tempo, III Tempo

I can speak of time as far as meter is concerned: e.g., 4/4

I can speak of tempo as execution speed, and I think this is what you are referring to.

Meter refers to a structure created through the alternation and construction of feet generated by accents that do not necessarily have to be homogeneous. Besides music, meter is found in other fields just like time and rhythm; for example, a standard of judgment, weather, and in literature with metrical reading.

For this last citation, a striking example is the Catullian meter of his Carmina.

These were verses composed of hendecasyllables with Phalaecian meter, iambic...

The structure was indeed the construction of an hendecasyllabic meter determined by the alternation of strong and weak accents. Here is an example of a Phalaecian:

"Cui donò lepidum novum libéllum"

http://www.pianoconcerto.it/condivisione/cuidono.mp3

In large and bold are the strong accents, in small and bold are the weak accents according to the schema above.

In music, a meter could be identified in syncopation, just to push it to the extreme.

I would point out to you—if you listened to the unworthy cantilena of the recording (which was deliberately chant-like to exaggerate the accentuation of the hendecasyllable)—that the basic meter is ternary.

Rhythm, on the other hand, is similar to meter with the difference that it repeats constantly and homogeneously over time. This is why rhythm is an important topic for dancers, precisely because rhythm characterizes a type of dance.

See, for example, the cardiac rhythm: a regular pattern that can accelerate or decrease depending, respectively, on situations of exertion or rest, but still maintains one strong accent and one weak accent.

Not by chance does the term arrhythmia indicate the presence of cardiac rhythm disturbances that no longer allow it to beat with a regular rhythm, homogeneity, and control.

Isn't it that rhythm is contained within the meter that flows through time?

Rhythm is the foundation; upon it, the meter of the piece is built, which must be performed at a certain tempo (understood as agogics).

I imagine the difficulty lies in differentiating these three terms and not confusing them when talking about speed, rhythmic scanning, etc. Therefore, very briefly: "tempo" is the speed of execution (one plays a piece at a fast tempo, andante, and so on), "meter" is actually the indication found at the beginning of each piece (6/8, 4/4, and so on), "rhythm" is (put very badly) the contingent distribution of values in time and is the most sensitive variable within the piece, because it can change with great frequency.

Thank you, the discussion is starting to become clear

Carlos wrote:

the "meter" is in fact the indication found at the beginning of each piece (6/8, 4/4, and so on)

... basically it is the size of the measure and the distribution of accents?

Gatto wrote:

... practically [the meter, ed.] is the dimension of the measure and the distribution of accents?

Perfect.

Gatto wrote:

... is it practically the bar size and the distribution of accents?

It must be said that this discussion holds true until the first half of the 1900s. After that, more and more progressively, the bar becomes merely a container that no longer governs the distribution of accents. Let's say it facilitates reading, although there are also types of notation where the time signature is omitted.

www.pianoconcerto.it/forum/index.php?/topic/1743-notazione-proporzionale

see also aleatory music.

...yes Gatto, we have practically returned to before the middle of the sixteenth century

Thanks to you too Valchiria, gee whiz, how much stuff is there to know?