Serialism, emerging in the early 1920s and flourishing through the mid‑20th century, is defined by the systematic organization of musical parameters—most famously pitch—using ordered series. The era reshaped compositional practice with twelve‑tone rows and total serialization.
A quarter note, also called a crotchet, is a musical note lasting one beat in common time. It is notated with an open notehead and a solid stem, and forms the basic unit of rhythm in many Western music styles.
New Age music is a genre that blends ambient, electronic, and world‑instrument sounds to create soothing, often meditative soundscapes. It emerged in the late 20th century and is commonly used for relaxation, yoga, and therapeutic contexts.
In tonal music, the relative minor is the minor key that shares the same key signature as a given major key, located a minor third below the major tonic. It provides a closely related tonal alternative without changing accidentals.
Andante is an Italian tempo indication meaning “walking pace,” commonly used in Western classical music to denote a moderate, steady speed. It lies between slower tempos such as Adagio and faster ones like Allegro, and is often specified with metronome markings ranging from 76 to 108 beats per minute.
A tempo is an Italian musical directive meaning “return to the original tempo” after a temporary change such as a ritardando or accelerando.
Allegretto is a musical tempo indication meaning a moderately fast, light, and graceful speed, positioned between Andante and Allegro.
Heavy metal is a loud, aggressive style of rock music that emerged in the late 1960s, characterized by heavily distorted guitars, emphatic rhythms, and powerful vocals. It has spawned numerous subgenres and has had a lasting cultural impact worldwide.
An augmented chord is a triad built from a root, a major third, and an augmented (raised) fifth, producing a distinctive, tense sound used in many musical styles.
The MTV Era spans roughly 1981–1995, defined by the rise of music‑television as a primary promotional tool and a shift toward highly produced, visually oriented pop and rock music.