bng syntax rules & poc

poc/poc.yml

@@ -0,0 +1,44 @@
+# fixed
+instruments:
+  # instrument name
+  sine:
+    # fixed
+    expr: sin(2*PI*f*t) # instrument formula (f is the frequency in Hertz, t is the time in seconds)
+  square:
+    expr: v*abs(sin(2*PI*f*t))
+    # fixed
+    vars:
+      # name of the variable
+      v: 1 # initial value of the variable
+channels:
+  melody:
+    instr: sine
+    score:
+      aabc.
+      'rt°y
+      +d+d+d---
+      /ff/f\\
+      ab>c<ba
+      ;this is a comment (or lyrics whatever),
+      s:df
+      (3deff)
+      (deff)
+      [ffe]
+      {1-cos((PI*x)/2),acced}
+      abbc!o5cc!v15feed!l4fedd!t60hdd
+      # rest: .
+      # pizz.: '°
+      # volume: +-
+      # length: /\
+      # octave: ><
+      # comment?: ;,
+      # start here: ':'
+      # glissando: {EXPR, score}
+      # loop: ()
+      # loop with count: (COUNT, score)
+      # tuple: []
+      # modifier: !
+      #   volume modifier prefix: v
+      #   octave modifier prefix: o
+      #   length modifier prefix: l
+      #   tempo modifier prefix: t