Tool
The harmonic field of B minor 2 sharps in the key signature. Click a degree to hear it, or hear the whole field.
Triads · natural minor B m i Tonic Diatonic C ♯ dim ii° Subdominant Diatonic D III Tonic Diatonic E m iv Subdominant Diatonic F ♯ m v Dominant Diatonic G VI Tonic Diatonic A VII Dominant Diatonic
Degree Symbol Notes Function i B m B · D · F♯ Tonic ii° C ♯ dim C♯ · E · G Subdominant III D D · F♯ · A Tonic iv E m E · G · B Subdominant v F ♯ m F♯ · A · C♯ Dominant VI G G · B · D Tonic VII A A · C♯ · E Dominant
Seventh chords · natural minor B m7 i7 Tonic Diatonic C ♯ m7 ♭5 iiø7 Subdominant Diatonic D maj7 IIImaj7 Tonic Diatonic E m7 iv7 Subdominant Diatonic F ♯ m7 v7 Dominant Diatonic G maj7 VImaj7 Tonic Diatonic A 7 VII7 Dominant Diatonic
Degree Symbol Notes Function i7 B m7 B · D · F♯ · A Tonic iiø7 C ♯ m7 ♭5 C♯ · E · G · B Subdominant IIImaj7 D maj7 D · F♯ · A · C♯ Tonic iv7 E m7 E · G · B · D Subdominant v7 F ♯ m7 F♯ · A · C♯ · E Dominant VImaj7 G maj7 G · B · D · F♯ Tonic VII7 A 7 A · C♯ · E · G Dominant
Triads · harmonic minor B m i Tonic Diatonic C ♯ dim ii° Subdominant Diatonic D aug III+ Tonic Diatonic E m iv Subdominant Diatonic F ♯ V Dominant Diatonic G VI Tonic Diatonic A ♯ dim vii° Dominant Diatonic
Degree Symbol Notes Function i B m B · D · F♯ Tonic ii° C ♯ dim C♯ · E · G Subdominant III+ D aug D · F♯ · A♯ Tonic iv E m E · G · B Subdominant V F ♯ F♯ · A♯ · C♯ Dominant VI G G · B · D Tonic vii° A ♯ dim A♯ · C♯ · E Dominant
Seventh chords · harmonic minor B m(maj7) imaj7 Tonic Diatonic C ♯ m7 ♭5 iiø7 Subdominant Diatonic D maj7 ♯5 IIImaj7#5 Tonic Diatonic E m7 iv7 Subdominant Diatonic F ♯ 7 V7 Dominant Diatonic G maj7 VImaj7 Tonic Diatonic A ♯ dim7 vii°7 Dominant Diatonic
Degree Symbol Notes Function imaj7 B m(maj7) B · D · F♯ · A♯ Tonic iiø7 C ♯ m7 ♭5 C♯ · E · G · B Subdominant IIImaj7#5 D maj7 ♯5 D · F♯ · A♯ · C♯ Tonic iv7 E m7 E · G · B · D Subdominant V7 F ♯ 7 F♯ · A♯ · C♯ · E Dominant VImaj7 G maj7 G · B · D · F♯ Tonic vii°7 A ♯ dim7 A♯ · C♯ · E · G Dominant
The notes are spelled in octave 4, from B4. The function is assigned by degree — tonic on I, III and VI; subdominant on II and IV; dominant on V and VII — which is how the harmonic field is taught. Context can change that reading, and the tool reports the degree.
Related keys D major Relative: the same key signature, in the other mode. B major Parallel: the same tonic, in the other mode. Bm in the dictionary The tonic triad: notes, staff, keyboard and guitar shapes. Read about Diatonic harmony The chords that arise from stacking thirds on each degree of a scale, and why each quality lands where it does. Harmonic function The role each degree plays — tonic, subdominant, or dominant — and the tension that moves one to the next. Roman numeral analysis The notation that describes a chord by the position it occupies in the key rather than by the note it sits on. Minor key harmony The minor harmonic field, which is not one field: the three minor scales produce different chords on the same degree. 
