B Mixolydian Mode

Notes in the B Mixolydian Mode

Degree Name Note Frequency (A=440)
1 Tonic B 493.883 Hz
2 Supertonic C♯ 277.183 Hz
3 Mediant D♯ 311.127 Hz
4 Subdominant E 329.628 Hz
5 Dominant F♯ 369.994 Hz
6 Submediant G♯ 415.305 Hz
♭7 Subtonic A 440.000 Hz

Interval Pattern

Formula: W-W-H-W-W-H-W
Step Interval Semitones From Note To Note
1 Whole Step (W) 2 B C♯
2 Whole Step (W) 2 C♯ D♯
3 Half Step (H) 1 D♯ E
4 Whole Step (W) 2 E F♯
5 Whole Step (W) 2 F♯ G♯
6 Half Step (H) 1 G♯ A
7 Whole Step (W) 2 A B

Chords Built on Scale Degrees

Degree Note Chord Quality
1 B B major
2 C♯ C♯ minor minor
3 D♯ D♯ diminished diminished
4 E E major
5 F♯ F♯ minor minor
6 G♯ G♯ minor minor
♭7 A A major

Key Signature

5 — The B key signature uses F♯, C♯, G♯, D♯, A♯.

B Mixolydian Mode in Practice

The B Mixolydian Mode uses the key signature of 5 sharps (F♯, C♯, G♯, D♯, A♯). B major has five sharps and a bright, somewhat tense quality. Enharmonically equivalent to Cb major, it is used in orchestral writing and some jazz compositions. On guitar, B positions offer open-string resonance for fingering positions for this scale.

The Mixolydian mode is like a major scale with a flat 7th, giving it a bluesy, rock quality. It appears in rock, blues, folk, and Celtic music and is essential for dominant chord improvisation. When played starting on B, the 7 notes are B, C♯, D♯, E, F♯, G♯, A. In this key the signature has 5 sharps (F♯, C♯, G♯, D♯, A♯). B sits at the boundary of comfortable sharp keys with 5 sharps, often used in orchestral writing for brilliance and in jazz for challenging ii-V-I exercises. Guitarists can play in B using barre chords at the second and seventh frets, and the key is common in pop and R&B music when vocalists prefer its tessitura.

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

Note Equal Temp. Pythagorean Just Intonation
B 493.883 Hz 495.000 Hz 490.548 Hz
C♯ 277.183 Hz 278.437 Hz 279.067 Hz
D♯ 311.127 Hz 309.026 Hz 313.951 Hz
E 329.628 Hz 330.001 Hz 327.032 Hz
F♯ 369.994 Hz 371.251 Hz 367.911 Hz
G♯ 415.305 Hz 417.657 Hz 418.601 Hz
A 440.000 Hz 440.000 Hz 436.043 Hz

Related Scales

Guitar: B Mixolydian Mode Positions

The B key offers 5 sharps (F♯, C♯, G♯, D♯, A♯) on guitar. Sharp-side keys like B are idiomatic guitar keys because open strings (E, A, D, G, B, E) align with the scale's natural resonance points.