Chord sequence

C#m7b5, F#7alt

C♯m7♭5 F♯7alt

Tempo 120 BPM

Rootless Shells Guide tones Rooted shells Rooted Drop 2

Four-note rootless voicings in their two forms, with the 3rd or the 7th on the bottom, played over the root.

Customize each chord

C#m7b5
F#7alt

Analysis

Heard in B major

Each chord's roman numeral and role in B major
Chord	Numeral	Role
C♯m7♭5	iiø7	Borrowed from B minor
F♯7alt	V7alt	Dominant

Progressions in these changes

All the chords

Minor ii-V Progression in B

The ii-V of a minor key: a half-diminished ii chord moving to an altered dominant, whose b9 and b13 are the 3rd and 6th of the minor key.

Scales to play