IPA: /ˈkrɒtʃɪt/
KK: /ˈkrɒtʃɪt/
A strange or unusual idea, often one that is stubbornly held. In music, it refers to a quarter note. It can also mean a small hook or a personal and eccentric opinion.
She has a peculiar crotchet about the way people should dress for work.
Crotchet → The word originates from Old French *crochette*, meaning a small hook. It refers to a small hook used in music notation, representing a note that is played for half the duration of a quarter note.
Think of a 'small hook' ('crochette') that helps you remember that a crotchet is a musical note that is shorter than a quarter note.