The example FluidPatcher (https://github.com/albedozero/fluidpatcher) bank file constructed in lesson 4 (https://youtu.be/K_TKv0kQubU)

lesson4.yaml

# messages keyword and init block
init:
  fluidsettings:
    synth.reverb.level: 1.0
    synth.reverb.room-size: 0.8
    synth.reverb.damp: 0.8
    synth.reverb.width: 5.0
  messages: [cc:1:74:0, cc:1:91:60]

messages:
- cc:1:1:0
- cc:1:11:127
- note:2:56:80

2: VintageDreamsWaves-v2.sf2:128:000

patches:
  Piano:
    1: piano/Fazioli Grand.sf2:000:000
  Saw Synth:
    1: VintageDreamsWaves-v2.sf2:000:014
    messages:
    - cc:1:11:60
  FM Piano:
    1: FM Piano.sf2:000:000
  VMSynth:
    1: ModSynth_R1.sf2:000:000
    messages: [cc:1:73:0]
    router_rules:
    - {type: cc, par1: 13=74}

router_rules:
- {type: cc, par1: 15=91}