Essential Music Theory: Rhythm, Melody, and Texture

Fundamentals of Rhythm and Melody

• Rhythm: Defined as the ordering of sounds and silences in time.
• Binary Sequence: Consists of two stages, alternating between strong and weak beats.
• Accents: Small angle-shaped signs placed above or below notes to emphasize a strong pulse.
• Syncopation: The anticipation of stress by attacking a note on a weak beat that carries over into a strong beat.
• Melody: A linear sequence of musical tones that express a cohesive musical idea.

The Major Diatonic Scale

The major diatonic scale is modeled after the natural C major scale, featuring semitones between the III-IV and VII-VIII degrees. The most important notes include:

• Tonic (I): The note that defines the key or scale.
• Dominant (V): The "magnet" note that exerts influence over the others.
• Subdominant (IV): The note located directly below the dominant.

Structure of a Melody

• Motif: The musical equivalent of a word; a small set of meaningful notes.
• Sentence: A musical phrase with its own meaning, ending in a cadence.
• Cadence: Equivalent to punctuation in language, used to separate musical phrases.
• Topic: The central melodic theme upon which a composition is constructed.

Melodic Designs

• Horizontal: The melodic line moves minimally, using repeated notes.
• Ascending: The melody moves from bass to treble.
• Descending: The melody moves from high to low.
• Wavy: The melody varies smoothly over a base note.
• Broken: The melody moves in peaks with wide intervals.
• Symmetric: The highest or lowest point is centered within the melody.

Harmony and Texture

• Consonance: Sounds perceived by the ear as relaxed and balanced.
• Dissonance: Sounds perceived by the ear as having tension.
• Monophonic Texture: A single melodic line, even if performed by multiple interpreters.
• Polyphonic Texture: Consists of several independent melodic lines sounding simultaneously.
• Accompanied Melody: A main melody supported by chords or other voices.
• Homophonic Texture: A harmonic texture where voices move together to form blocks of chords.