# Bb 大調 guitar scale

> 明亮、安定的聲音，西方音樂的中心，其他音階都拿它當參照

## Quick facts

- Root: Bb
- Notes: Bb, C, D, Eb, F, G, A
- Degrees: 1 2 3 4 5 6 7
- Step formula: W-W-H-W-W-W-H
- Note count: 7
- Best for: 旋律、創作，以及幾乎所有場景
- Enharmonic root: A#

## Diatonic chords

- I: [Bb](https://openguitarchords.com/zh-Hant/chords/b-flat)
- ii: [Cm](https://openguitarchords.com/zh-Hant/chords/c-minor)
- iii: [Dm](https://openguitarchords.com/zh-Hant/chords/d-minor)
- IV: [Eb](https://openguitarchords.com/zh-Hant/chords/e-flat)
- V: [F](https://openguitarchords.com/zh-Hant/chords/f)
- vi: [Gm](https://openguitarchords.com/zh-Hant/chords/g-minor)
- vii°: [Adim](https://openguitarchords.com/zh-Hant/chords/diminished-chords#a-diminished)

Canonical page: https://openguitarchords.com/zh-Hant/scales/b-flat-major