The B Minor Add 9 chord is a four-note chord made up of B, C♯, D, and F♯.
Construction
B Minor Add 9 = Root + Major 2nd + Minor 3rd + Perfect 5th = B · C♯ · D · F♯
| Note | Interval | Degree |
|---|---|---|
| B | Root | 1 |
| C♯ | Major 2nd | 2 |
| D | Minor 3rd | ♭3 |
| F♯ | Perfect 5th | 5 |
Key Signature
A chord has no key signature of its own, but the B Minor Add 9 is the tonic (i) chord of B Minor, which shares the signature of its relative major, D Major — 2 sharps (F♯, C♯).
F♯C♯
Order of sharps
Sharps are added to a key signature in a fixed order. Each new sharp key adds the next sharp on the list.
F♯C♯G♯D♯A♯E♯B♯
Mnemonic: Father Charles Goes Down And Ends Battle
Chords in the Key of B Minor
These are the triads built on each degree of the B minor scale:
B Minor Add 9 — Frequently Asked Questions
What is the B Minor Add 9 chord on piano?
The B Minor Add 9 chord contains the notes B – C♯ – D – F♯. On piano, play these notes together to sound the chord.