def gen(self, path, nnotes=200, motif=None):
self.t = 0
if motif:
motif = parse(motif)
print "="*60
print "Generating Shepard Tones"
tobj = TrackObj(trackName="Track1")
for i in range(nnotes):
dur = 1
if motif:
j,dur = motif[i % len(motif)]
if j == 'r':
self.t += dur*self.ticksPerBeat
continue
else:
j = i % 12
#print i, j
notes = self.getChord(j, dur)
self.t += dur*self.ticksPerBeat
for note in notes:
tobj.addNote(note)
midiObj = MidiObj()
midiObj.addTrack(tobj)
midiObj.saveAsJSON(path)
mpath = path.replace(".json", ".mid")
midiObj.saveAsMidi(mpath)
def remapTrack(self, tobj, tau=None, vLow=-2, vHigh=2, inst=127, fch=None, res=None, repeats=None):
if res == None:
res = self.resolution
if res == None:
print "Cannot remap track without resolution"
return
mObj = MidiObj(resolution=res)
T = tobj.getMaxTime()
print "T:", T
if tau == None:
tau = T
tau = T
rmap = RissetMapper(T, tau)
reMax = rmap.get_te(T,0)[0]
print "rmap(T):", reMax
ch = 0
for v in range(vLow, vHigh+1):
print "v: ", v
#rtObj = self.remapv(tobj, v, tau, ch=ch, inst=10+v)
if fch != None:
ch = fch
rtObj = self.remapv(tobj, v, tau, ch=ch, inst=inst)
rtObj.trackName = "risset v=%s" % v
if repeats:
rt0 = TrackObj()
for i in range(repeats):
rt0.append(rtObj)
rtObj = rt0
mObj.addTrack(rtObj)
ch += 1
#mObj.resolution = rtObj.resolution
mObj.loop = True
return mObj
def genTrackBasicBeat1(resolution):
t = TrackObj()
numMeasures = 8
tpb = resolution # ticks per beat
bpmeasure = 4 # beats per measure
for m in range(numMeasures):
b = m * bpmeasure
t0 = b * tpb
print "b: %3d t: %8.3f" % (b, t0)
# c p t v dur
t.addNote(Note(0, 50, t0, 90, 0.25 * tpb))
t.addNote(Note(0, 50, t0 + 1 * tpb, 70, 0.25 * tpb))
t.addNote(Note(0, 50, t0 + 2 * tpb, 70, 0.25 * tpb))
t.addNote(Note(0, 50, t0 + 3 * tpb, 70, 0.25 * tpb))
t.setMaxTime(t0 + bpmeasure * tpb)
m = MidiObj(resolution=tpb)
m.addTrack(t)
return m
def genTrack():
t = TrackObj()
for i in range(10):
t0 = 400*i
v1 = 50
v2 = 90
v3 = 30
t.addNote(Note(50, t0, v1, 25))
t.addNote(Note(51, t0+50, v2, 25))
t.addNote(Note(52, t0+200, v2, 50))
t.addNote(Note(53, t0+300, v2, 25))
t.setMaxTime(t0 + 400)
return t
def remapTrack(self,
tobj,
tau=None,
vLow=-2,
vHigh=2,
inst=127,
fch=None,
res=None,
repeats=None):
if res == None:
res = self.resolution
if res == None:
print "Cannot remap track without resolution"
return
mObj = MidiObj(resolution=res)
T = tobj.getMaxTime()
print "T:", T
if tau == None:
tau = T
tau = T
rmap = RissetMapper(T, tau)
reMax = rmap.get_te(T, 0)[0]
print "rmap(T):", reMax
ch = 0
for v in range(vLow, vHigh + 1):
print "v: ", v
#rtObj = self.remapv(tobj, v, tau, ch=ch, inst=10+v)
if fch != None:
ch = fch
rtObj = self.remapv(tobj, v, tau, ch=ch, inst=inst)
rtObj.trackName = "risset v=%s" % v
if repeats:
rt0 = TrackObj()
for i in range(repeats):
rt0.append(rtObj)
rtObj = rt0
mObj.addTrack(rtObj)
ch += 1
#mObj.resolution = rtObj.resolution
mObj.loop = True
return mObj
def gen(self, path, nnotes=200, motif=None):
self.t = 0
if motif:
motif = parse(motif)
print "="*60
print "Generating Shepard Tones"
tobj = TrackObj(trackName="Track1")
for i in range(nnotes):
dur = 1
if motif:
j,dur = motif[i % len(motif)]
else:
j = i % 12
#print i, j
notes = self.getChord(j, dur)
for note in notes:
tobj.addNote(note)
midiObj = MidiObj()
midiObj.addTrack(tobj)
midiObj.saveAsJSON(path)
def gen(self, path, nnotes=200, motif=None):
self.t = 0
if motif:
motif = parse(motif)
print "=" * 60
print "Generating Shepard Tones"
tobj = TrackObj(trackName="Track1")
for i in range(nnotes):
dur = 1
if motif:
j, dur = motif[i % len(motif)]
else:
j = i % 12
#print i, j
notes = self.getChord(j, dur)
for note in notes:
tobj.addNote(note)
midiObj = MidiObj()
midiObj.addTrack(tobj)
midiObj.saveAsJSON(path)
def genTrackBasicBeat0(resolution):
t = TrackObj()
numMeasures = 8
tpb = resolution # ticks per beat
bpm = 4 # beats per measure
for m in range(numMeasures):
b = m*bpm
t0 = b * tpb
print "b: %3d t: %8.3f" % (b, t0)
# c p t v dur
t.addNote(Note(0, 50, t0, 90, 0.5*tpb))
#t.addNote(Note(0, 51, t0+1*tpb, 60, 0.5*tpb))
t.addNote(Note(0, 51, t0+0.5*tpb, 60, 0.25*tpb))
t.addNote(Note(0, 52, t0+2*tpb, 70, 0.25*tpb))
t.addNote(Note(0, 53, t0+3*tpb, 70, 0.5*tpb))
t.setMaxTime(t0 + bpm*tpb)
m = MidiObj(resolution=tpb)
m.addTrack(t)
return m
def genShepard(path, nvoices=5, noctaves=5, nnotes=200, motif=None):
if motif:
motif = parse(motif)
print "=" * 60
print "Generating Shepard Tones"
tobj = TrackObj(trackName="Track1")
t = 0
for v in range(nvoices):
sv = ShepVoice(noctaves, 12 * v)
for i in range(nnotes):
j = i
dur = 1
if motif:
j, dur = motif[i % len(motif)]
#print j, dur
tOn, note = sv.getNote(t, j, dur)
t += sv.ticksPerBeat * dur
if note:
#print i, note.toList()
tobj.addNote(note)
midiObj = MidiObj()
midiObj.addTrack(tobj)
midiObj.saveAsJSON(path)
def genShepard(path, nvoices=5, noctaves=5, nnotes=200, motif=None):
if motif:
motif = parse(motif)
print "="*60
print "Generating Shepard Tones"
tobj = TrackObj(trackName="Track1")
t = 0
for v in range(nvoices):
sv = ShepVoice(noctaves, 12*v)
for i in range(nnotes):
j = i
dur = 1
if motif:
j,dur = motif[i % len(motif)]
#print j, dur
tOn, note = sv.getNote(t, j, dur)
t += sv.ticksPerBeat*dur
if note:
#print i, note.toList()
tobj.addNote(note)
midiObj = MidiObj()
midiObj.addTrack(tobj)
midiObj.saveAsJSON(path)
def remapv(self, tObj, v, tau=None, rtObj=None, ch=0, inst=0):
print "------------------------"
print "remapv", v
T = tObj.getMaxTime()
if rtObj == None:
rtObj = TrackObj()
rtObj.addEvent(ProgChangeEvent(0, ch, inst))
print "T:", T
if tau == None:
tau = T
tau = T
rmap = RissetMapper(T, tau)
reMax = rmap.get_te(T, 0)[0]
print "rmap(T):", reMax
tvals = tObj.events.keys()
tvals.sort()
nNotes = 0
for tv in tvals:
for ev in tObj.events[tv]:
if not isinstance(ev, Note):
print "Skipping non note object", ev.__class__.__name__
continue
tl = ev.t0
dur = ev.dur
tes = rmap.get_te(tl, v)
#print "tl: %7.2f te: %s" % (tl, tes)
for te in tes:
rate = rmap.get_rate(te, v)
p = self.power(rate)
#print "v: %d te: %6.2f rate: %5.2f p: %5.1f" % (v, te, rate, p)
dr = dur / rate
if rate > 2:
dr = dur
note = Note(ch, ev.pitch, round(te),
round(p * ev.velocity), dr)
rtObj.addNote(note)
nNotes += 1
#rtObj.resolution = tObj.resolution
rtObj.instruments = [inst]
rtObj.channels = [ch]
print "nNotes:", nNotes
return rtObj
def remapv(self, tObj, v, tau=None, rtObj=None, ch=0, inst=0):
print "------------------------"
print "remapv", v
T = tObj.getMaxTime()
if rtObj == None:
rtObj = TrackObj()
rtObj.addEvent(ProgChangeEvent(0, ch, inst))
print "T:", T
if tau == None:
tau = T
tau = T
rmap = RissetMapper(T, tau)
reMax = rmap.get_te(T,0)[0]
print "rmap(T):", reMax
tvals = tObj.events.keys()
tvals.sort()
nNotes = 0
for tv in tvals:
for ev in tObj.events[tv]:
if not isinstance(ev, Note):
print "Skipping non note object", ev.__class__.__name__
continue
tl = ev.t0
dur = ev.dur
tes = rmap.get_te(tl, v)
#print "tl: %7.2f te: %s" % (tl, tes)
for te in tes:
rate = rmap.get_rate(te, v)
p = self.power(rate)
#print "v: %d te: %6.2f rate: %5.2f p: %5.1f" % (v, te, rate, p)
dr = dur/rate
if rate>2:
dr = dur
note = Note(ch, ev.pitch, round(te), round(p*ev.velocity), dr)
rtObj.addNote(note)
nNotes += 1
#rtObj.resolution = tObj.resolution
rtObj.instruments = [inst]
rtObj.channels = [ch]
print "nNotes:", nNotes
return rtObj
def genTrack():
t = TrackObj()
for i in range(10):
t0 = 400*i
v1 = 50
v2 = 90
v3 = 30
t.addNote(Note(50, t0, v1, 25))
t.addNote(Note(51, t0+50, v2, 25))
t.addNote(Note(52, t0+200, v2, 50))
t.addNote(Note(53, t0+300, v2, 25))
t.setMaxTime(t0 + 400)
return t
#t = genTrack()
t = TrackObj("BluesRhythm1.json")
t.saveAsJSON("foo.json")
print "t.maxTime", t.getMaxTime()
print "=========================================="
print "1_2"
rt1 = t.rescaleByTime(t.rescaleTime(0.25, 0.5))
rt1.scalePower(0, 0.3)
save(rt1, "risset0.25_0.5.json")
print "=========================================="
rt2 = t.rescaleByTime(t.rescaleTime(0.5, 1))
rt2.scalePower(0.3, 1)
save(rt2, "risset0.5_1.json")
rt3 = t.rescaleByTime(t.rescaleTime(1, 2))
from PVMidi import TrackObj, Note
t1 = TrackObj("risset0.25_0.5.json")
t2 = TrackObj("risset0.5_1.json")
t3 = TrackObj("risset1_2.json")
t4 = TrackObj("risset2_4.json")
print "t1 tMax: %8.2f %5d" % (t1.getMaxTime(), t1.getNumNotes())
print "t2 tMax: %8.2f %5d" % (t2.getMaxTime(), t2.getNumNotes())
print "t3 tMax: %8.2f %5d" % (t3.getMaxTime(), t3.getNumNotes())
print "t4 tMax: %8.2f %5d" % (t4.getMaxTime(), t4.getNumNotes())
rt = TrackObj()
rt.append(t1)
rt.append(t2)
rt.append(t3)
rt.append(t4)
rt.saveAsJSON("rissetvoice.json")
rt = TrackObj("rissetvoice.json")
print "rt tMax: %8.2f %5d" % (rt.getMaxTime(), rt.getNumNotes())
