- scherzando
- score
- saxophonist
- scherzo
- school
- saxtuba
- schottische
- scale
- semiquaver
- semitonal
- sempre
- septet
- seraphine
- serenade
- serenata
- semi-quaver
- semitone
- semplice
- septette
- sequence
- serioso
- serpent
- setting
- seventh
- sforzando
- shift
- signature
- sharp
- sharpen
- shawm
- si
- silencer
- sixteenth
- sixth
- slid
- slider-trombone
- slide
- soft pedal
- soh
- slur
- smorzando
- sol
- solfeggio
- solmizate
- solmization
- solo
- soloist
- sonata
- sonatina
- soprani
- sopranist
- soprano
- sordine
- sound-board
- sounding-board
- sourdine
- staccato
- staff
- stave
- staves
- stick
- stop
- strad
- stradivarius
- strain
- strepitoso
- study
- string quartet
- stringendo
- subdominant
- submediant
- stuck
- suite
- supertonic
- superdominant
- swing
- swung
- syncopate
- syncope
- syringes
- syncopation
- syrinx
- tambourine
- tardo
- tempi
- tempo
- tenor
- terce
- tercet
- tessitura
- tetrachord
- theorbo
- tierce
- timbal
- timbrel
- third
- tie
- tiercet
- timbre
- time