My algorithmic music toolbox! Yay!

blues_solo.py

@@ -19,6 +19,8 @@ def add_note(out, instr, key_num, duration, bpm, volume):
     stream *= volume
     out << stream
 
+
+
 # this controls the sample rate for the sound file you will generate
 sampling_rate = 44100.0
 Wavefile.setDefaults(sampling_rate, 16)
@@ -31,6 +33,27 @@ def add_note(out, instr, key_num, duration, bpm, volume):
 blues_scale = [25, 28, 30, 31, 32, 35, 37, 40, 42, 43, 44, 47, 49, 52, 54, 55, 56, 59, 61]
 beats_per_minute = 45				# Let's make a slow blues solo
 
-add_note(solo, bass, blues_scale[0], 1.0, beats_per_minute, 1.0)
+curr_note = 0
+add_note(solo, bass, blues_scale[curr_note], 1.0, beats_per_minute, 1.0)
+
+
+
+licks = [ [ [1,0.5*1.1], [1,0.5*0.9], [1, 0.5*1.1], [1, 0.5*0.9] ], [ [-1, 0.5*1.1], [-1, 0.5*0.9], [-1, 0.5*1.1], [-1, 0.5*0.9] ], [ [-2, 0.5*0.9], [3, 0.5*0.9], [4, 0.5*1.1], [1, 0.5*0.9] ] ]
+for i in range(4):
+    lick = choice(licks)
+    for note in lick:
+        curr_note += note[0]
+        add_note(solo, bass, blues_scale[curr_note], note[1], beats_per_minute, 1.0)
+
+backing_track = AudioStream(sampling_rate, 1)
+Wavefile.read('Ragtime_Piano_SCOTT_JOPLIN_.wav', backing_track)
+
+m = Mixer()
+
+solo *= 0.4             # adjust relative volumes to taste
+backing_track *= 2.0
+
+m.add(2.25, 0, solo)    # delay the solo to match up with backing track   
+m.add(0, 0, backing_track)
 
-solo >> "blues_solo.wav"
+m.getStream(500.0) >> "slow_blues.wav"