half step
See also:
half-step
English
Noun
half
step
(
plural
half steps
)
(
music
,
US
)
The distance between two
tones
. In 12-tone equal temperament, its
frequency
ratio is
2
1
/
12
{\displaystyle 2^{1/12}}
, or about 1.059 or 18/17.
Related terms
whole step
semitone
cent