I have finished the Algorithm Music Toolbox 5/5 All Done.

blues_solo.py

@@ -2,7 +2,8 @@
 
 from Nsound import *
 import numpy as np
-from random import choice
+import random
+
 
 def add_note(out, instr, key_num, duration, bpm, volume):
     """ Adds a note from the given instrument to the specified stream
@@ -30,7 +31,44 @@ def add_note(out, instr, key_num, duration, bpm, volume):
 	See: http://en.wikipedia.org/wiki/Blues_scale """
 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
+duration = [.5, .6, .7 ,.8, .9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5] #added a varying duration on each note
+volume = [.7, .8, .9, 1.0, 1.1, 1.2, 1.3] #added a varying volume
+
+curr_note = 6 #changed starting position
+add_note(solo, bass, blues_scale[curr_note], 1.0, beats_per_minute, 1.0)
+
+
+#added a whole of licks, all at random durations
+licks = [[ [-1,0.5*random.choice(duration)], [2,0.5*random.choice(duration)], [-1, 0.5*random.choice(duration)], [2, 0.5*random.choice(duration)] ], 
+		[ [1,0.5*random.choice(duration)], [-2,0.5*random.choice(duration)], [-2, 0.5*random.choice(duration)], [1, 0.5*random.choice(duration)] ], 
+		[ [2,0.5*random.choice(duration)], [2,0.5*random.choice(duration)], [-3, 0.5*random.choice(duration)], [2, 0.5*random.choice(duration)] ], 
+		[ [4,0.5*random.choice(duration)], [-1,0.5*random.choice(duration)], [2, 0.5*random.choice(duration)], [-5, 0.5*random.choice(duration)]], 
+		[ [-2,0.5*random.choice(duration)], [-3,0.5*random.choice(duration)], [6, 0.5*random.choice(duration)], [-3, 0.5*random.choice(duration)] ],
+		[ [2,0.5*random.choice(duration)], [2,0.5*random.choice(duration)], [2, 0.5*random.choice(duration)], [2, 0.5*random.choice(duration)] ],
+		[ [4,0.5*random.choice(duration)], [1,0.5*random.choice(duration)], [-3, 0.5*random.choice(duration)], [-2, 0.5*random.choice(duration)] ],
+		[ [0,0.5*random.choice(duration)], [1,0.5*random.choice(duration)], [2, 0.5*random.choice(duration)], [0, 0.5*random.choice(duration)] ],
+		[ [3,0.5*random.choice(duration)], [2,0.5*random.choice(duration)], [-1, 0.5*random.choice(duration)], [-1, 0.5*random.choice(duration)] ],
+		[ [-3,0.5*random.choice(duration)], [4,0.5*random.choice(duration)], [0, 0.5*random.choice(duration)], [-4, 0.5*random.choice(duration)] ]]
+
+for i in range(95):
+    lick = random.choice(licks)
+    for note in lick:
+        curr_note += note[0]
+        if curr_note > len(blues_scale)-1 or curr_note < 0:  #checks for out of bounds cases
+        	curr_note = random.choice([0,6,12,18])  #note will now automatically swtich a random root note if it passes a boundary
+        add_note(solo, bass, blues_scale[curr_note], note[1], beats_per_minute, random.choice(volume))
+
+
+backing_track = AudioStream(sampling_rate, 1)
+Wavefile.read('backing.wav', backing_track)
+
+m = Mixer()
+
+solo *= .6             # volumes were adjusted for slightly balancing of songs (although tbh hard to tell when my song is so random lol)
+backing_track *= 1.6
 
-add_note(solo, bass, blues_scale[0], 1.0, beats_per_minute, 1.0)
+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"
+#changed the length of the track
+m.getStream(265.0) >> "slow_blues.wav"