name pitches

freude.py

@@ -16,7 +16,10 @@ parser.add_argument("--bpm", default=60, type=float, help="beats per minute")
 args = parser.parse_args()
 
 # starting from C3 = 130.81 Hz
-frequencies = [2 ** (i / 12) * 130.81 for i in range(36)]
+pitches = ["c", "c#", "d", "d#", "e", "f", "f#", "g", "g#", "a", "a#", "b"]
+frequencies = {
+    f"{pitches[i % 12]}{i // 12 + 3}": 2 ** (i / 12) * 130.81 for i in range(36)
+}
 # duration of 1/16th beat
 base_duration = 60 / args.bpm / 16
 
@@ -33,14 +36,15 @@ with open(args.output, "w") as f:
                 if pitch == "":
                     # skip comment
                     continue
-                pitch = int(pitch)
+                try:
-                if pitch + 12 < 0 or pitch + 12 > len(frequencies) - 1:
+                    frequency = frequencies[pitch]
-                    sys.exit(f"pitch goes from -12 to {len(frequencies) - 1 - 12}")
+                except KeyError:
+                    sys.exit("pitch goes from c3 to b5")
                 duration = int(duration)
                 pause = int(pause)
                 if duration < 1 or pause < 0:
                     sys.exit("duration/pause are integer multiples of 1/16th beat")
-                feedrate = int(frequencies[pitch + 12] * 60 / args.steps_per_mm)
+                feedrate = int(frequency * 60 / args.steps_per_mm)
                 length = duration * base_duration / 60 * feedrate
                 position += -length if position > 100 else length
                 if position < 0 or position > 200:

freude.txt

@@ -1,62 +1,78 @@
-4,4,0
+,,https://www.lieder-archiv.de/lieder/solo1/300600.png
-4,4,0
+e4,4,0
-5,4,0
+e4,4,0
-7,4,0
+f4,4,0
-7,4,0
+g4,4,0
-5,4,0
+,,
-4,4,0
+g4,4,0
-2,4,0
+f4,4,0
-0,4,0
+e4,4,0
-0,4,0
+d4,4,0
-2,4,0
+,,
-4,4,0
+c4,4,0
-4,6,0
+c4,4,0
-2,2,0
+d4,4,0
-2,8,0
+e4,4,0
-4,4,0
+,,
-4,4,0
+e4,6,0
-5,4,0
+d4,2,0
-7,4,0
+d4,8,0
-7,4,0
+,,
-5,4,0
+e4,4,0
-4,4,0
+e4,4,0
-2,4,0
+f4,4,0
-0,4,0
+g4,4,0
-0,4,0
+,,
-2,4,0
+g4,4,0
-4,4,0
+f4,4,0
-2,6,0
+e4,4,0
-0,2,0
+d4,4,0
-0,8,0
+,,
-2,4,0
+c4,4,0
-2,4,0
+c4,4,0
-4,4,0
+d4,4,0
-0,4,0
+e4,4,0
-2,4,0
+,,
-4,2,0
+d4,6,0
-5,2,0
+c4,2,0
-4,4,0
+c4,8,0
-0,4,0
+,,
-2,4,0
+d4,4,0
-4,2,0
+d4,4,0
-5,2,0
+e4,4,0
-4,4,0
+c4,4,0
-2,4,0
+,,
-0,4,0
+d4,4,0
-2,4,0
+e4,2,0
--5,8,0
+f4,2,0
-4,4,0
+e4,4,0
-4,4,0
+c4,4,0
-5,4,0
+,,
-7,4,0
+d4,4,0
-7,4,0
+e4,2,0
-5,4,0
+f4,2,0
-4,4,0
+e4,4,0
-2,4,0
+d4,4,0
-0,4,0
+,,
-0,4,0
+c4,4,0
-2,4,0
+d4,4,0
-4,4,0
+g3,8,0
-2,6,0
+,,holding the G3 longer sounds better
-0,2,0
+e4,4,0
-0,8,0
+e4,4,0
+f4,4,0
+g4,4,0
+,,
+g4,4,0
+f4,4,0
+e4,4,0
+d4,4,0
+,,
+c4,4,0
+c4,4,0
+d4,4,0
+e4,4,0
+,,
+d4,6,0
+c4,2,0
+c4,8,0