Thanks for the MIDI suggestion.
I got something basic working with music21.
I saved a midi from lilly with 2 parts for staff/tab. Very basic score
with a handful of notes but I'll test with more typical rhythm notation.
I then cobbled together this code using AI/SO. I'll need to do more
testing but it's looking exactly what I need, I can use the octave I hope
to check the correct frequency of the incoming guitar signal. That was
much easier than parsing the ly fle and manually calculating the time from
rhythm.
from music21 import *
# Load the MIDI file
score = converter.parse('./mid/MidTest.midi',forceSource=True)
notes = []
i = 0;
for a in score:
if a.isStream:
e = repeat.Expander(a)
s2 = e.process()
timing = s2.secondsMap
score[i] = s2
i += 1;
def getMusicProperties(x):
s = '';
t='';
s = str(x.pitch) + ", " + str(x.duration.type) + ", " + str(x
.duration.quarterLength);
s += ", "
if x.tie != None:
t = x.tie.type;
s += t + ", " + str(x.pitch.ps) + ", " + str(x.octave); # + str(x.seconds)
# x.seconds not always there
return s
print("Time Offset")
for el in score[2].recurse().notes:
if (el.isNote):
totalOffset = el.getOffsetInHierarchy(score)
print(totalOffset)
print('pitch, duration_string, duration, tie, midi pitch, octave')
for a in score[2].recurse().notes:
if (a.isNote):
x = a;
s = getMusicProperties(x);
print(s);
print("Done.")
