A part is a piece of music written for an individual voice or instrument.
An individual part can be repeated in a process known as doubling.
A group is a collection of parts. An instrumental group and a vocal group are the two main types of group.
Writing Music
Sound
Science of sound
Waveform
Pitch
Notation
Timbre
Perception of sound
Consonance
Tonality
Instrument
Instrument type
Instrument range
Instrumentation
Recording
Microphone
Synthesis
Sampling
Copyright
Writing Noise
Computer
Synth
Technical noise
White noise
Pink noise
Red noise
Additive synthesis
Saw wave
Triangle wave
Pulse wave
Square wave
Modulation synthesis
Ring Modulation
Amplitude Modulation
Frequency Modulation
Sound FX
Chirp
Dynamics
Normalisation
Envelope
Crossfade
Compression
Tremolo
Filtering
Low pass filter
High pass filter
Band pass filter
Band stop filter
Vibrato
Equalisation
Phasing
Delay
Echo
Comb filter
Chorus effect
Flanging
Reverberation
Pan
Writing Rhythm
Percussion
Percussion notation
Percussion type
Drum kit
Percussion sample
Percussion synthesis
Rhythm element
Beat
Accent
Tempo
Meter
Time signature
Duple and triple meter
Simple and compound meter
Quadruple meter
Rhythm pattern
Drum rudiment
Syncopation
Swing
Composite rhythm
Complex rhythm
Polyrhythm
Free rhythm
Pitch and rhythm
Pitched percussion
Pitched rhythm
Note value
Writing Melody
Musical instrument
Musical instrument type
Tuning and interval
Unison and octave
Inversion
Pythagorean tuning
Fourth and fifth
Second and seventh
Third and sixth
Major and minor
Tritone
Just intonation
Equal temperament
Tuning comparison
Scale
Chromatic scale
Atonal melody
Mode
Key
Key signature
Major scale
Lydian and mixolydian
Minor scale
Dorian and phrygian
Locrian
Pentatonic scale
Diatonic
Voice
Vocal range
SATB
Formant
Singing
Lyric
Variant
Melodic idea
Offset
Elision and ellipsis
Invert
Retrograde
Invert retrograde
Ornament
Motion
Repeat
Step
Leap
Modulation
Transposition
Accidental
Modulation type
Parallel key
Circle of fifths
Relative key
Close key
Distant key
Writing Harmony
Part and group
Part
Doubling
Group
Instrumental group
Vocal group
Drone harmony
Drone
Multipart drone
Parallel harmony
Parallel octave
Parallel second
Parallel third
Parallel fifth
Power chord
Tablature
Multipart parallel
Counterpoint
First species counterpoint
Contrapuntal melody
Contrapuntal consonance
Contrapuntal motion
Second species counterpoint
Third species counterpoint
Fourth species counterpoint
Fifth species counterpoint
Multipart counterpoint
Counterpoint orchestration
Self harmony
Round
Canon
Chordal harmony
Chord
Root
Chord construction
Chord notation
Chord progression
Triad
Chord inversion
Voicing
Harmony and melody
Harmonisation
Arpeggio
Melodisation
Functional harmony
Primary triad
Secondary triad
Parallel motion
Voice leading
Major harmony
Minor harmony
Cadence
Dominant seventh
Chromatic chord
Functional modulation
Embellishment
Pop harmony
Pop song
Verse
Pop chord progression
Pop modulation
Bridge
Suspended chord
Add chord
Major and minor seventh chord
Chorus
Borrowed chord
Modal harmony
Pentatonic harmony
Quartal harmony
Jazz harmony
Seventh chord
Jazz voicing
Jazz progression
Secondary dominant
Extended chord
Chord substitution
Modal jazz
Chord scale system
Altered chord
Chromatic harmony
Polytonality
Tone cluster
Twelve tone harmony
Serialism
Synthetic harmony
Microtonality
Granular synthesis
Composition
Process
Inspiration
Idea
Repetition
Variation
Completion
Publication
Constraint
A story
Form
Element
Section
Type of form
Limit of form