I have a Prologue 8 but as far as I can tell the 8 and 16 have the same midi implementation.
NAME:PROLOGUE
OUT:A
CHANNEL:5
85:TIMBRE_EDIT
86:TIMBRE_TYPE
8:TIMBRE_BAL
5:PORATMENTO
14:VOICE_SPRD
27:VOICE_MODEDEPTH
50:VCO1_WAVE
48:VCO1_OCTAVE
34:VCO1_PITCH
36: VCO1_SHAPE
51:VCO2_WAVE
49:VCO2_OCTAVE
35:VCO2_PITCH
37:VCO2_SHAPE
53:MULTI_TYPE
52:MULTI_OCTAVE
54:MULTI_SHAPE
39:MIXER_VCO1
40:MIXER_VCO2
33:MIXER_MULTI
43:CUTOFF
44:RESONANCE
45:EG_INT
84:CUTOFF_DRIVE
82:LOWCUT
83:KEYTRACK
16:AMP_ATTACK
17:AMP_DECAY
18:AMP_SUSTAIN
19:AMP_RELEASE
20:EG_ATTACK
21:EG_DECAY
22:EG_SUSTAIN
23:EG_RELEASE
57:LFO_WAVE
58:LFO_MODE
24:LFO_RATE
26:LFO_INT
56:LFO_TARGET
88:MODFX_TYPE
28LMODFX_SPEED
29:MODFX_DEPTH
89:DLYRVRB_TYPE
30:DLYRVRB_TIME
31:DLYRVRB_DEPTH
81:PITCH_EG
42:PITCH_EG_INT
80:RING_SYNC
41:CROSSMOD_DEPTH
92:MODFX_ON_OFF
94:DLYRVRB_ON_OFF
64:DAMPER
120:ALL_SOUND_OFF
121:RESET_ALL_CONTROLLERS