I provided the unedited sheet music and some Youtube performances previously.
Even if you do not read music, following the orange bar as it moves through the score is worthwhile. The s and s – 8 and 4 bar – are identified in red. Have a listen and observe – feel – the phrases and section changes.
I will post some analysis in a while. (I have copious notes and observations written on my sheet music, but it always seems to take five times longer to type them up than it does to make them in the first place).
(Close the “synchronized audio/video” window, if on screen in your environment, then play the score. Click/tap any bar to stop playback.
Al compás del corazón, Caló/Berón (1942):
Sections are the top level element of music's form. They are the the large building blocks of tango music, typically lasting around thirty seconds or so. Each section is a unique segment of music, having a distinct musical character.
Tango music has two, occasionally three, primary sections, which we may label “A”, “B”, “C”. Sometimes there is an "Introduction", "Bridge", a short section between two larger ones, or "Coda", a short concluding section.
Usually each section will be played consecutively in order (A then B then C), followed by various other orderings. Typically in tango songs each section is played instrumentally then each is sung, then section A is played instrumentally: A-B-A (vocal)-B (vocal)-A. But there are many exceptions and other possibilities.
Phrases exist within a section.
A short section of music with a clear start and end quality, with a consistent or complementary musical character. Generally, the character is different from what comes after or precedes it, anywhere from subtly to very obvious. more...
A bar or measure is a small segment of music containing all the number of beats as specified by the time signature.