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Bashrc.wiki: Added sing and note2freq section

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David Thurstenson 2021-06-05 19:47:33 -05:00
parent 5bf657c322
commit 84c1bc6b43
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@ -187,6 +187,25 @@ As an added bonus, the `-l` option will print the url for that product's support
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== `sing()` and `note2freq()` ==
https://git.thurstylark.com/vcsh/bashrc.git/tree/.bashrc.d/sing.bash
I was having trouble writing music scripts for the pcspkr because all the examples that I could find only used frequency numbers as arguments to `beep`, and it was difficult to map frequency numbers to musical note letters in the process of making my own tunes. `note2freq()` solves this issue by taking a musical note in the form of `<letter>[accidental]<octave>`, where:
* `<letter>` is one of `A` through `G`
* `[accidental]` is one of:
* `b` for flat
* `s` for sharp
* omitted for a natural note
* `<octave>` is `1` through `7`
`sing()` takes a list of notes in this same form along with note length in ms, uses `note2freq()` to translate each one to a frequency number and constructs a string of arguments that `beep` can use to play the entire tune in one go.
Both of these in tandem make beep tune writing way easier.
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==Weechat==
https://git.thurstylark.com/vcsh/bashrc.git/tree/.bashrc.d/weechat.bash