The subtonic is scale degree 7 of a natural minor scale: the pitch a whole tone (major second) below the tonic that bears NO leading function. PARAMETERS: (1) intervallic status — the subtonic sits a whole tone (two semitones) below the tonic, in direct contrast to the leading tone, which sits a semitone (one semitone) below the tonic and bears the upward semitone pull; the whole-tone distance is what disqualifies the degree from the leading function (in A minor, G natural is the subtonic, G# the leading tone); (2) scale context — the subtonic is the unaltered seventh degree of the natural minor scale and reappears in the descending form of the melodic minor (which restores the natural minor's lower three degrees), whereas the raised leading tone appears in the ascending melodic minor and in harmonic minor; (3) functional role — as the root of the subtonic triad (vII, a major triad in minor keys, e.g. G major over A minor) it resolves to the tonic by step rather than by semitone pull, and in jazz usage it is the flat-seven (b7) that colors the dominant-seventh and minor-seventh chords. PERSISTENCE: codified in tonal and jazz theory as the natural-minor seventh degree, distinguished in every harmony curriculum from the raised leading tone (harmonic/melodic minor), taught as the b7 in jazz harmony, and maintained in the practice of cadence analysis where the vII-VI-i motion and the absence of the semitone pull mark the subtonic. Distinctions: from the leading tone (same ordinal slot — degree 7 — but a semitone below the tonic with the upward semitone pull; the two are alternate occupants of the seventh degree, filed as separate entries); from a bare pitch (any point on the pitch axis — the subtonic is a degree bearing a specific whole-tone-below-tonic status and the absence of the leading function); from the dominant (degree 5 and its cadential function — a different ordinal slot entirely). [formal: subtonica | substrate: mind | horizon: centuries | explicit: yes | epoch: 0.01]
Accepted ontology entry
subtonic
The subtonic is scale degree 7 of a natural minor scale: the pitch a whole tone (major second) below the tonic that bears NO leading function. PARAMETERS: (1) intervallic status — the subtonic sits a whole tone (two semitones) below the to…
Definition
Why it is in scope
A human-made musical construct: scale degree 7 of a natural minor scale — the pitch a whole tone below the tonic bearing no leading function — built to persist in tonal and jazz practice as the flat-seventh position contrasted with the leading tone.
Names and aliases
- subtonicen · CANONICAL
Relations from this entry
- scale-degreeINSTANCE_OF →
The subtonic is a specific kind of scale-degree: the seventh ordinal slot of a natural minor scale, distinguished by its whole-tone intervallic status and the absence of the leading function. The source's accepted definition carves it as 'scale degree 7 of a natural minor scale: the pitch a whole tone below the tonic that bears NO leading function' — a scale-degree with its ordinal fixed at 7, its intervallic status fixed (whole tone, not semitone), and its function named (the bVII / flat-seven role). scale-degree is the NEAREST accepted kind (Law 11e): no intermediate rung exists on the map; musical-scale is the container of degrees, not a kind; the leading-tone is its alternate occupant of the same slot, not its kind. A competent speaker calls the subtonic 'a scale degree — the flat seven'. Specific to general (Law 9); pinned sense (Law 11d): the natural-minor seventh degree per the source's own definition.
- tonicDEPENDS_ON →
Law 8b removal test, grounded in the source's own definition: the subtonic is carved as 'scale degree 7 of a natural minor scale: the pitch a whole tone below the tonic that bears NO leading function'. Every parameter is defined relationally to the tonic: its intervallic status is 'a whole tone below the tonic', its distinguishing feature is the ABSENCE of the leading function (which is itself defined by the semitone pull TO the tonic). Remove the tonic construct now and the subtonic stops operating as a subtonic: the whole-tone distance has no target, the contrast with the leading function collapses to a bare degree, and the construct that relies on relational identity (always defined as x-below-the-tonic) dissolves to an unanchored pitch. Not a sayability claim: the subtonic's operational identity is the whole-tone relation to a specific center, and functional analysis names it by that relation. Pinned sense (Law 11d): subtonic as the natural-minor seventh degree per the source's own definition.
Relations to this entry
No accepted relations in this direction.
Record identity
- Created
- Sep 26, 2026, 3:53 AM UTC
- Content hash
- 99ec120c3978712b2a3d4f0c06b1289b2f32764cf7d1890e27abd81d03f7f943