The Great Book of Music

...It thus serves to complete what is in the melodic pathway and, upon conclusion, prepares for the notes of the resolution genre original: "jins al-taslim," referring to the concluding musical phrase or cadence that "delivers" the melody to its final rest..

4 — Science of Rhythm:

Its subject is specifically concerned with organizing the melody into methods that regulate its parts over specific time intervals, against which sounds are measured in terms of stress and softness original: "al-shidda wa-al-lin," referring to the dynamics of accented and unaccented beats or the intensity of the rhythmic strike..

Rhythms are classified into genres within temporal cycles called foundations foundations: "al-usul," the fundamental rhythmic patterns or cycles that serve as the structural basis for a musical composition., the smallest of which consists of two movements or "beats.".

5 — Science of Composition:

This science is concerned with matching parts of the lyrics original: "al-aqawil," literally "the sayings" or "the poetic speech." with the parts of the notes associated with them. It involves embellishing melodies at their beginning, middle, and end, improving their rhythms, and ensuring a beautiful correspondence between the vocalized letters referring to the phonetic sounds of the text of the speech and the intended meanings. It also involves completing one's knowledge of musical modes and rhythms through practical exercises in refined craftsmanship.

These sciences, along with what pertains to or arises from them, must encompass all subjects of knowledge regarding the craft of theoretical music theoretical music: "al-musiqa al-nazariyya," the academic and mathematical study of musical principles as distinct from performance. in melodies.

The second section: "Branches," which are the arts of practical or instrumental craft:
This includes various types of practical training to specialize in the performance of notes, their harmonies, and their rhythmic markings original: "tawqi'at," the act of striking or marking time in a rhythmic sequence. on various types of instruments across a wide scope. This is divided into two aspects:

The first aspect: Natural, which follows the foundational principles in the craft of melodies paired with speech. It relates to natural notes that harmonize with human voices and their accompanying qualities. The most famous arts of notes addressed in this aspect are of two types: