英和和英

F-flat major (uncountable)

(music) The theoretical major key with F-flat as its tonic and the notes F♭, G♭, A♭, B♭♭, C♭, D♭, and E♭.

${\key fes \major fes' ges' aes' beses' ces'' des'' es'' fes''2}$
(music) The major chord with a root of F-flat.

<img loading="lazy" src="//upload.wikimedia.org/score/l/f/lf5vhh4f1dr6aifmr5qmsr01zxwddq1/lf5vhh4f.png" width="121" height="52" alt="1">

Wiktionary英語版