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authors-ol <s-ol@users.noreply.github.com>2020-06-03 10:50:20 +0000
committers-ol <s+removethis@s-ol.nu>2025-03-02 14:24:49 +0000
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-As mentioned earlier, `alv` doesn't produce sound by itself. Instead, it is
-paired with other tools, and takes the role of a 'Conductor', sending commands
-and sequencing other tools.
-
-For the sake of this guide, we will be controlling [Pilot][pilot], a simple
-UDP-controlled synthesizer. You can go ahead and download and open it now.
-You should see a small window with a bunch of cryptic symbols and a little
-command line at the bottom. To verify that everything is working so far,
-try typing in `84c` and hitting enter. This should play a short sound (the note
-4C, played by the 8th default synthesizer voice in Pilot).
-
-To talk to Pilot from `alv`, we will use the [pilot/][] module. Note that for
-this module to work, you have to have the `osc` and `luasocket` dependencies
-installed. To play the same sound we played by entering `84c` above every 0.5
-seconds, we can use [time/every][] to send a `bang` to [pilot/play][]:
-
- (import* time)
- (import pilot)
- (pilot/play (every 0.5) 8 4 'c')
-
-You can play with the voice, octave and note values a bit. To add a simple
-melody, we can use [util/switch][], which will cycle through a list of
-parameters when used together with [time/tick][]:
-
- (import* time util)
- (import pilot)
- (pilot/play (every 0.5) 8 4
- (switch (tick 0.5) 'c' 'd' 'a' 'f'))
-
-Now we can have the voice change every other loop as well:
-
- (import* time util)
- (import pilot)
- (pilot/play (every 0.5)
- (switch (tick 4) 8 9)
- 4 (switch (tick 0.5) 'c' 'd' 'a' 'f'))
-
-To round off the sound a bit, we can turn on Pilot's reverb using
-[pilot/effect][]. Add the following somewhere in your file:
-
- (pilot/effect "REV" 2 8)
-
-Now it's time to add some rhythm. The kick drum is voice 12 by default,
-and we can also add something like a snare on channel 3:
-
- (pilot/play (every 0.75)
- 12 2 'd' 3)
- (pilot/play (every 2)
- 13 4 'a' 4)
-
-Note that since we are using multiple individual [time/every][] instances,
-the timing of our voices relative to each other is not aligned - each voice
-started playing when the file was first saved with it added, and kept the
-rhythmn since. By deleting all their tags and re-saving the file, we can force
-`alv` to re-instantiate them all at the same time, thereby synchronising
-them.
-
-[pilot]: https://github.com/hundredrabbits/Pilot