Bb Altered 7th Guitar Chord
Bb7alt
Altered
·
5 notes
·Symbol : 7alt
Chord Notes
Bb
R
D
3
Gb
♯5
Ab
♭7
B
♭9
Solfège : Sib – Ré – Solb – Lab – Si
Chord Structure
Bb
2T
D
2T
Gb
T
Ab
T+½
B
About this chord
The altered chord (7alt) accumulates several alterations on the dominant: ♭9, ♯9, ♭5 and/or ♯5. It represents the most extreme dominant tension, derived from the altered scale (7th mode of melodic minor). On guitar, alt voicings use the top 4 strings, omitting root and fifth to keep only the most expressive tensions.
See all diagrams and fretboard positions for Bb Altered 7th in the interactive ScalaBass app.
Explore in ScalaBass →