Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
georgecn
on Oct 19, 2019
|
parent
|
context
|
favorite
| on:
Music Theory for Musicians and Normal People
My thumbrules:
Middle A or A4: 440 Hz.
Every higher octave doubles the frequencies.
Consider applying for YC's Spring batch! Applications are open till Feb 11.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
Middle A or A4: 440 Hz.
Every higher octave doubles the frequencies.