Customized version of http://www.thingiverse.com/thing:53235

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=53235

Using the following options:

midAxisHolderH = 3.3
midBigTeeth = 20
GENERATE_MID_GEAR = 1
FOR_PRINT = 1
crankDirection = 0
crankTeeth = 8
MusicCylinderNameFont = write/Letters.dxf
gammaTooth = 1.875
baseFrequC0 = 16.3516
GENERATE_PULLEY = 1
midSmallTeeth = 8
noteAlpha = 5
E_PLA = 8240000
teethNotes = C 0C#0D 0D#0E 0F 0F#0G 0G#0A 0A#0B 0C 1C#1D 1D#1E 1F 1
pulleySnapL = 1.2
midGearAngle = -5
gear_gap = 1
GENERATE_CRANK_GEAR = 1
crankExtraH = 4
crankSlack = 0.2
MusicCylinderNamePosition = 0
GENERATE_MUSIC_CYLINDER = 1
GENERATE_CASE = 1
crankAxisR = 3
gearH = 3
epsilonCSG = 0.1
gear_min_gap = 0.1
crankAxisHolderH = 1.55
pteethMinD = 1.5
axisSlack = 0.3
teethHolderH = 5
teethHolderW = 5
ro_PLA = 924
GENERATE_CRANK = 1
crankAxisCutAwayH = 4
DEBUG_GEARS = 0
snapAxisSlack = 0.35
musicCylinderTeeth = 24
musicAxisHolderH = 3.4
pinD = 1.5
pinH = 3
pins = XoooooooooooooXoooooooooooooXoooooooooooooXoooooooooooooXoooooooooooooXoooooooooooooXoooooooooooooXoooooooooooooXoooooooooooooXoooooooooooooXoooooooooooooXoooooooooooooXoooooooooooooXoooXooXoooooooooooooooooooXoooXooXoooooooooooooooooooXoooXooXoooooooooooooooooooXoooXooXoooooooooooooooooooXoooXooXoooooooooooooooooooXoooXooXoooooooooooooXooXoooXoooooooooooooooooooXooXoooXoooooooooooooooooooXooXoooXoooooooooooooooooooXooXoooXoooooooooooooooooooXooXoooXoooooooooooooooooooXooXoooX
$fn = 32
MusicCylinderNameFontSize = 8
gear_tolerance = 0.1
MusicCylinderNameDepth = 0.6
crankGearAngle = 15
MusicCylinderName = test song
pulleySlack = 0.4
pinNrY = 35
pinNrX = 13
pulleyH = 10
diametral_pitch = 0.6
gear_hold_R = 4
wall = 2
crankLength = 18