Write songs & learn to program!
https://song-walker.vercel.app/
SongWalker is a js library that compiles SongWalker code into javascript code to be used
to render music and other media. A Music Programming Language is capable of writing songs of
unlimited potential, unconstrained by the technical requirements of
modern DAWs.
Here is a breakdown of source code for a renderable song which can played back or compiled directly into a game or other piece of software.
This code loads a guitar sample bank as a lead, an oscillator as osc,
a percussion set perc and a reverb effect reverb.
const lead = await loadPreset(/FluidR3.*\/.*Guitar/i) // Load first matching preset
const osc = await loadPreset("Oscillator", {'type': 'square', mixer: 0.4})
const perc = await loadPreset("FluidR3_GM/Room 1")
const reverb = await loadPreset("Reverb")SongWalker auto-generates the variable track to represent the current playing track
track.beatsPerMinute = 160;This code plays both tracks track1 (with an guitar sample instrument) and beat1
simultaneously, then waits 8 beats, then plays both tracks again, but this time track1 uses an oscillator
instrument.
track1(lead); beat1^96@4; 8
track1(osc); beat1@7; 8
This code defines a track function. Track functions differ from normal javascript functions
because they generate a local track variable which represents the current track state.
By changing this track state, we can switch up or reconfigure instruments and effects.
track track1(instrument) {
track.effects = [reverb]; // This track will use the reverb effect only
track.instrument = instrument; // Instrument is set to the parameter variable
track.duration=1/4 // Note duration will be 1/4th a beat
C3 /2 // Play C3, wait 1/2 beat
C2@/2 /2 // override note duration with 1/2 beat
G2 /2 // Play G2, wait 1/2 beat
Eb2 /2 // Play Eb2, wait 1/2 beat
Eb3 /2 // Play Eb3, wait 1/2 beat
F3 /2 // Play F3, wait 1/2 beat
Eb3 /2 // Play Eb3, wait 1/2 beat
D3 /2 // Play D3, wait 1/2 beat
C3 /2 // Play C3, wait 1/2 beat
C2 /2 // Play C2, wait 1/2 beat
G2 /2 // Play G2, wait 1/2 beat
Eb2 /2 // Play Eb2, wait 1/2 beat
D3 /2 // Play D3, wait 1/2 beat
C2 /2 // Play C2, wait 1/2 beat
Bb2 /2 // Play Bb2, wait 1/2 beat
}
Define a percussion track with no parameters
track beat1() {
track.instrument=perc // Set track instrument to percussion kit
track.velocityDivisor=10 // Set velocity devisor to 10
chh^3 /2 // Play CloseHiHat at 3/10 velocity, wait 1/2
chh^3 /2 // Play CloseHiHat at 3/10 velocity, wait 1/2
chh as /2 // Play CloseHiHat & Acoustic Snare, wait 1/2
chh^3@/8 /2 // Play CloseHiHat at 3/10 velocity, wait 1/2
chh abd /2 // Play CloseHiHat & Base Drum, wait 1/2
chh^3 abd^6 /2 // Play CloseHiHat at 3/10 velocity, wait 1/2
chh as /2 // Play CloseHiHat & Acoustic Snare, wait 1/2
chh^3 /4 // Play CloseHiHat at 3/10 velocity, wait 1/4
chh^3 /4 // Play CloseHiHat at 3/10 velocity, wait 1/4
chh abd /2 // Play CloseHiHat & Base Drum, wait 1/2
chh^3 /2 // Play CloseHiHat at 3/10 velocity, wait 1/2
chh as /2 // Play CloseHiHat & Acoustic Snare, wait 1/2
chh^3 /2 // Play CloseHiHat at 3/10 velocity, wait 1/2
chh abd /2 // Play CloseHiHat & Base Drum, wait 1/2
chh^3 abd^6 /2 // Play CloseHiHat at 3/10 velocity, wait 1/2
chh as /2 // Play CloseHiHat & Acoustic Snare, wait 1/2
ohh^3@/3 /2 // Play OpenHiHat at 3/10 velocity, wait 1/2
}
import {compileSongToCallback, renderSong} from "@songwalker";
const song = compileSongToCallback(SONG_SOURCE);
await renderSong(song);SongWalker Preset Library comes with all presets from WebAudioFont
See index of wavetables
Main project - WebAudioFont
If you're interested in contributing to this project please contact me at ari@asu.edu