Apt by Rose, Bruno Mars is an upcoming release. Based on early previews, leaks, or producer history, we predict it sits in the key of D Major at 130 BPM (Camelot 10B). Below you'll find the scale, chords, and compatible keys for mixing.
APT. by ROSÉ & Bruno Mars exudes an infectious, upbeat energy. Its tempo of 130 BPM fuels a lively dance atmosphere. The key of D major suits the song's energetic vibe, as it often evokes feelings of joy and triumph in music. This key choice, combined with the fast-paced rhythm, creates an irresistible urge to move.
Scale & Notes of D Major
The D Major scale is built from these seven notes:
DEF#GABC#
Its relative key is B Minor (same notes), and its parallel key is D Minor. If you're transposing or looking for a vocal-comfortable key, those are the natural neighbours.
Chords in D Major
The seven diatonic triads in this key — the chord palette most of the song will draw from:
| Degree | Chord | Quality |
|---|
| I | D | Major |
| ii | Em | Minor |
| iii | F#m | Minor |
| IV | G | Major |
| V | A | Major |
| vi | Bm | Minor |
| vii° | C#dim | Diminished |
Indian Classical: the Khamaj thaat
In Hindustani classical terms, D Major maps to the Khamaj thaat (Western mode: Mixolydian). Mixolydian mode — major scale with a flat 7th. Common in blues, rock, and folk. Earthy, sensuous quality. Traditional listening time: Late evening to night.
If you want to sing or practise in this key, set your tonic (Sa) to D. Ragas built on this thaat:
- Khamaj — Mixolydian with both ♮7 and ♭7 (ascending/descending difference). Sensuous, romantic.
- Des — Mixolydian pentatonic (omits 2nd & 6th). Patriotic, folk-like (Late night).
- Jaijaiwanti — Mixolydian with both ♭3 and ♮3 — complex chromatic tension. Majestic, complex (Midnight).
- Tilak Kamod — Mixolydian with added ♭3 colour notes. Light, amorous (Night).
- Jhinjhoti — Mixolydian ♭3 (between Dorian and Mixolydian). Gentle, devotional (Night).
Set Tanpura to D →Practise in this key →Find another song's key →
Harmonic mixing (for DJs)
Apt sits at Camelot 10B. For a smooth harmonic transition, mix it with tracks in 9B, 10A, 11B — adjacent keys on the Camelot wheel that share most of their notes.