In music, the supertonic is the second degree () of a diatonic scale, one whole step above the tonic. In the movable do solfège system, the supertonic note is sung as re.
{{Image frame|content= { \override Score.TimeSignature #'stencil = ##f \relative c' { \clef treble \time 7/4 c4 \once \override NoteHead.color = #red d e \once \override NoteHead.color = #red f g \once \override NoteHead.color = #red a b \time 2/4 c2 \bar "||" \time 4/4 1 \bar "||" } }
{ \override Score.TimeSignature #'stencil = ##f \relative c' { \clef treble \time 7/4 c4 \once \override NoteHead.color = #red d es \once \override NoteHead.color = #red f g \once \override NoteHead.color = #red aes bes \time 2/4 c2 \bar "||" \time 4/4 1 \bar "||" } } |width=310|caption=The scale and supertonic triad in C major (top) and C minor (bottom).}}
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).