in The Work · Music Notes
A♯ / B♭
description
A♯ / B♭ is pitch class 10 — ten semitones above C, two below the octave. A♯ rises from A; B♭ falls from B. Same class in equal temperament; spelling follows the key or chord.
Chromatically it sits between A and B, near the top of the octave climb from C. It is a black-key class on the usual keyboard picture.
In major-triad grammar this class is the root of B♭ major (B♭–D–F), the major third of F♯ major (F♯–A♯–C♯), and the perfect fifth of E♭ major (E♭–G–B♭). Alone it stays a pitch class. Key character appears only when a major triad meets in the vessel.
In The Work this face is a Music Note — collected from The Atlas and carried on its own map, apart from Tokens and Cards. Alone it stays a pitch class. Three notes that form a recognized major chord may open a vessel offering; arbitrary threes do not.
This page does not name other notes as linked related items and does not unlock a map word.
Place three notes of a major triad in The Work to open a chord offering. A return is another meeting, not a collection.