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#!/usr/bin/env python
frequencies = [
32.70, #C1 0
65.41, #C2 1
69.31, #C#2 2
73.42, #D2 3
77.78, #D#2 4
82.41, #E2 5
87.31, #F2 6
92.50, #F#2 7
98.00, #G2 8
103.83, #G#2 9
110.00, #A2 10
116.54, #Bb2 11
123.47, #B2 12
130.81, #C3 13
138.59, #C#3 14
146.83, #D3 15
155.56, #D#3 16
164.81, #E3 17
174.61, #F3 18
185.00, #F#3 19
196.00, #G3 20
207.65, #G#3 11
220.00, #A3 22
233.08, #Bb3 23
246.94, #B3 24
261.63, #C4 25
277.18, #C#4 26
293.66, #D4 27
311.13, #D#4 28
329.63, #E4 29
349.23, #F4 30
369.99, #F#4 31
392.00, #G4 32
415.30, #G#4 33
440.00, #A4 34
466.16, #Bb4 35
493.88, #B4 36
523.25, #C5 37
554.37, #C#5 38
587.33, #D5 39
622.25, #D#5 40
659.26, #E5 41
698.46, #F5 42
739.99, #F#5 43
783.99, #G5 44
830.61, #G#5 45
880.00 #A5 46
]
notes = [
0,-1,
17,13,10,6,
-1,5,0,
-1,0,-1,
0,-1,
17,13,10,6,
-1,3,1,
-1,
]
lengths = [
2,2,
1,1,1,1,
1,1,2,
1,2,1,
2,2,
1,1,1,1,
1,1,4,
2
]
assert(len(lengths) == len(notes))
feedrates = [60.0*f/320 for f in frequencies]
print "G21"
print "G90"
print "G92 X0 Y0 Z0"
print "G28"
z = 0;
for i in range(4):
for (note,length) in zip(notes, lengths):
if note == -1:
print "G4 P%(P)d" % {'P':length*136}
else:
if note > 0: note = note + 12
z += 0.136 * length * feedrates[note] / 60
print "G1 Z%(Z).2f F%(F).2f" % {'Z':z, 'F':feedrates[note]}
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