feat(instruments): add a few example instruments

examples/instruments/supersaw-adam.yml

@@ -0,0 +1,39 @@
+name: Supersaw
+comment: |
+    Author: pestis/bC!. Originally from: 4k intro Adam.
+
+    Experimenting with the unison oscillators. Note that all units are in stereo. Try adding even more detune.
+
+    Oscillators: Each oscillator is stereo and has unison of 3 oscillators. The unison oscillators are in addition to the standard oscillator so there altogether 4 oscillators per channel = 8 oscillators. Thus, with three oscillator units, there is a total of 24 saw tooth oscillators, 12 per channel.
+    Noise-filter: Add some high end hiss to the sound.
+    Filter: High pass filter to remove the low end.
+    Outaux: Assumes the aux channel is sent to global reverb.
+numvoices: 1
+units:
+    - type: oscillator
+      parameters: {color: 2, detune: 48, gain: 16, lfo: 0, phase: 0, shape: 63, stereo: 1, transpose: 66, type: 1, unison: 3}
+    - type: oscillator
+      parameters: {color: 126, detune: 78, gain: 16, phase: 0, shape: 64, stereo: 1, transpose: 66, type: 1, unison: 3}
+    - type: addp
+      parameters: {stereo: 1}
+    - type: oscillator
+      parameters: {color: 2, detune: 59, gain: 16, phase: 0, shape: 64, stereo: 1, transpose: 66, type: 1, unison: 3}
+    - type: addp
+      parameters: {stereo: 1}
+    - type: noise
+      parameters: {gain: 6, shape: 64, stereo: 1}
+    - type: filter
+      parameters: {bandpass: 0, frequency: 128, highpass: 1, lowpass: 0, negbandpass: 0, neghighpass: 0, resonance: 128, stereo: 1}
+    - type: addp
+      parameters: {stereo: 1}
+    - type: envelope
+      parameters: {attack: 50, decay: 64, gain: 96, release: 64, stereo: 1, sustain: 64}
+    - type: mulp
+      parameters: {stereo: 1}
+    - type: filter
+      parameters: {bandpass: 0, frequency: 32, highpass: 1, lowpass: 0, negbandpass: 0, neghighpass: 0, resonance: 128, stereo: 1}
+    - type: delay
+      parameters: {damp: 64, dry: 64, feedback: 64, notetracking: 0, pregain: 64, stereo: 1}
+      varargs: [9187, 9187]
+    - type: outaux
+      parameters: {auxgain: 128, outgain: 0, stereo: 1}