the.com/quaver

A musical note too nervous to commit to a full beat.

means To shake or tremble slightly, especially in a voice, with fear, cold, or strong emotion.

from Quaver surfaces in Middle English from 'quave,' meaning to shake or tremble — likely related to 'quake.' Musicians borrowed the trembling word for a trembling note: in British musical notation a quaver is an eighth note, so called because it flickers past twice as fast as a crotchet, giving the music a shivery, fluttering feel.

other name
eighth note in american english
symbol
flagged stem, one flag exactly
old meaning
a trembling voice, before music notation borrowed it
half of
two quavers make one crotchet
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