F♯ Minor 11th = Root + Minor 3rd + Perfect 5th + Minor 7th + Major 2nd + Perfect 4th = F♯, A, C♯, E, G♯, B
Note
Interval
Degree
F♯
Root
1
A
Minor 3rd
♭3
C♯
Perfect 5th
5
E
Minor 7th
♭7
G♯
Major 2nd
9
B
Perfect 4th
11
Key Signature
A chord has no key signature of its own, but the F♯ Minor 11th is the tonic (i) chord of F♯ Minor, which shares the signature of its relative major, A Major: 3 sharps (F♯, C♯, G♯).
F♯C♯G♯
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 F♯ Minor
These are the triads built on each degree of F♯ Minor:
The notes F♯ – A – C♯ – E – G♯ – B aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell: