The music is so rich even listening to the Noteflight synthesizer is pleasing, though far from the beauty heard in the numerous recordings, naturally. The lush and sophisticated use of comes through. So do the ic changes – mostly. And the melodic interplay, in this case between the right and left hands, is clear too. The beautiful in the main melodic section is barely hinted at though. That requires a human. Anyway, worth a listen.
I marked in the s and s. Section A is 17 s long with two distinct phrases. The first phrase is 8 bars long, followed by a short 2 bar (or transition) to the second phrase, which is 5 bars long. The section ends with another 2 bar bridge, beautifully transitioning and preparing us for the lyrical, long held melodic notes which come next. The highly lyrical main theme begins Section B, which is 32 bars long. There are four 8 Bar Phrases, the 1st and 3rd being the same. Each phrase is distinctly different (except the repeated one), having melodic, harmonic and rhythmic ideas of its own.
I also added the harmonies. This is not “Golden Age’ harmony, of course; it is richly expanded with hints of jazz. Sometimes the chords may be named more than one way. At times the harmonies transition from one to the other by shifting notes up or down by scale steps, or using suspensions before resolving to a “normal” chord”. (I entered chord names as I hear them now, but may change some of the names in the future. All chords are named in root position, although seldom is the root the bass note. If you don’t know what that means, and would like to, read through Harmony.)
The original sheet music is from todotango.com. (After the sheet music there is an optional 8 bar piano part which is noted to be played from bar 34, which is the where the main melodic theme and its first 8 Bar Phrase is repeated.)
Adiós Nonino, Astor Piazzolla (1959):
There are several definitions for "harmony". For my purposes I use this one: harmony is three or more different notes sounded together, also called a chord. When I write "the harmony" or "the underlying harmony" I am specifically referring to the notes in a chord.
Rhythm is the ordering of sounds and silences on and between a continuous and evenly spaced unit of time, called the beat.
Sounds may or may not have pitch. Many percussion instruments do not have pitch yet function as the rhythm section in most popular forms of music: they create and maintain the beat. (Tango is quite unique in not having a dedicated rhythm section). Musicians call sounds with pitch, notes and silences, rests. A note has both pitch and duration; a rest only duration.
When notes, and possibly rests, of (usually) different duration are combined there is rhythm.
There are usually two layers of rhythm in tango: melodic and accompaniment. More...
The word lyricism is used to describe the quality and character of music which is predominantly lyrical in character. That is, music with a smooth, and connected, effortless flowing character, often with broad sweeping melodies and gentle accompaniment.
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.
In terms of form, a bridge is a short section used to connect two other larger sections. Usually the musical character is different but complementary and may contain elements from the preceding section and/or the next one. It is literally a "bridge" between them.