Cwejman S1 MK2: MIDI CC, NRPN and OSC map¶
The Cwejman S1 MK2 as named OSC addresses — 117 CC, 16 NRPN — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Cwejman S1 MK2 |
|---|---|
| Vendor | Cwejman |
| OSC prefix | /s1_mk2 |
| Source | 📦 Derived from MIDI Guide (community CC/NRPN data) |
| Firmware | unknown |
| Revision | per pencilresearch canonical CSV |
| Upstream | pencilresearch |
| Data licence | CC-BY-SA-4.0 — MIDI Guide (https://midi.guide) by Pencil Research and contributors |
| Driver file | devices/cwejman/s1_mk2.pencilresearch.fw-unknown.json |
Not tested on the device yet
This driver comes from documentation or community data and has not been checked on real hardware. If you own one, a quick test and a pull request promoting it helps everyone — see CONTRIBUTING.
How do you control it?¶
Find the MIDI ports, then start the bridge with this driver:
osc-bridge detect # prints the ready-to-run line for what is plugged in
osc-bridge run --device devices/cwejman/s1_mk2.pencilresearch.fw-unknown.json --out-port <N> --in-port <M>
Then send OSC to 127.0.0.1:7777, for example:
From Claude or any MCP client, the osc-bridge mcp server exposes this driver as s1_mk2: ask “what can the Cwejman S1 MK2 do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (133)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/s1_mk2/global/base_note |
0 / 1 | 0–127 | continuous | Global | |
/s1_mk2/cv_outputs/control_voltage_1_function |
0 / 2 | 0–127 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_2_function |
0 / 3 | 0–127 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_3_function |
0 / 4 | 0–127 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_4_function |
0 / 5 | 0–127 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_5_function |
0 / 6 | 0–127 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_6_function |
0 / 7 | 0–127 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_2_range_scaling |
0 / 9 | 0–63 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_2_range_accent_threshold |
0 / 9 | 0–127 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_3_range_scaling |
0 / 10 | 0–63 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_3_range_accent_threshold |
0 / 10 | 0–127 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_4_range_scaling |
0 / 11 | 0–63 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_4_range_accent_threshold |
0 / 11 | 0–127 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_5_range_scaling |
0 / 12 | 0–63 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_5_range_accent_threshold |
0 / 12 | 0–127 | continuous | CV outputs | |
/s1_mk2/cv_outputs/control_voltage_6_range |
0 / 13 | 0–24 | discrete | CV outputs | |
/s1_mk2/pedals/hold_pedal |
64 | 0–127 | continuous | Pedals | |
/s1_mk2/pedals/legato_pedal |
68 | 0–127 | continuous | Pedals | |
/s1_mk2/channel_mode/all_sound_off |
120 | 0–127 | continuous | Channel mode | |
/s1_mk2/channel_mode/reset_all_controllers |
121 | 0–127 | continuous | Channel mode | |
/s1_mk2/channel_mode/all_notes_off |
123 | 0–127 | continuous | Channel mode | |
/s1_mk2/channel_mode/omni_off |
124 | 0–127 | continuous | Channel mode | |
/s1_mk2/channel_mode/omni_on |
125 | 0–127 | continuous | Channel mode | |
/s1_mk2/assignable_parameters_a/assignable_parameter_000 |
0 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_001 |
1 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_002 |
2 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_003 |
3 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_004 |
4 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_005 |
5 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_007 |
7 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_008 |
8 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_009 |
9 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_010 |
10 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_011 |
11 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_012 |
12 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_013 |
13 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_014 |
14 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_a/assignable_parameter_015 |
15 | 0–127 | continuous | Assignable parameters A | |
/s1_mk2/assignable_parameters_b/assignable_parameter_016 |
16 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_017 |
17 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_018 |
18 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_019 |
19 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_020 |
20 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_021 |
21 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_022 |
22 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_023 |
23 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_024 |
24 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_025 |
25 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_026 |
26 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_027 |
27 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_028 |
28 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_029 |
29 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_030 |
30 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_b/assignable_parameter_031 |
31 | 0–127 | continuous | Assignable parameters B | |
/s1_mk2/assignable_parameters_c/assignable_parameter_032 |
32 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_033 |
33 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_034 |
34 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_035 |
35 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_036 |
36 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_037 |
37 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_039 |
39 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_040 |
40 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_041 |
41 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_042 |
42 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_043 |
43 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_044 |
44 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_045 |
45 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_046 |
46 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_c/assignable_parameter_047 |
47 | 0–127 | continuous | Assignable parameters C | |
/s1_mk2/assignable_parameters_d/assignable_parameter_048 |
48 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_049 |
49 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_050 |
50 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_051 |
51 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_052 |
52 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_053 |
53 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_054 |
54 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_055 |
55 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_056 |
56 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_057 |
57 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_058 |
58 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_059 |
59 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_060 |
60 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_061 |
61 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_062 |
62 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_d/assignable_parameter_063 |
63 | 0–127 | continuous | Assignable parameters D | |
/s1_mk2/assignable_parameters_e/assignable_parameter_065 |
65 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_066 |
66 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_067 |
67 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_069 |
69 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_070 |
70 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_071 |
71 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_072 |
72 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_073 |
73 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_074 |
74 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_075 |
75 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_076 |
76 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_077 |
77 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_078 |
78 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_e/assignable_parameter_079 |
79 | 0–127 | continuous | Assignable parameters E | |
/s1_mk2/assignable_parameters_f/assignable_parameter_080 |
80 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_081 |
81 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_082 |
82 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_083 |
83 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_084 |
84 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_085 |
85 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_086 |
86 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_087 |
87 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_088 |
88 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_089 |
89 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_090 |
90 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_091 |
91 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_092 |
92 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_093 |
93 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_094 |
94 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_f/assignable_parameter_095 |
95 | 0–127 | continuous | Assignable parameters F | |
/s1_mk2/assignable_parameters_g/assignable_parameter_102 |
102 | 0–127 | continuous | Assignable parameters G | |
/s1_mk2/assignable_parameters_g/assignable_parameter_103 |
103 | 0–127 | continuous | Assignable parameters G | |
/s1_mk2/assignable_parameters_g/assignable_parameter_104 |
104 | 0–127 | continuous | Assignable parameters G | |
/s1_mk2/assignable_parameters_g/assignable_parameter_105 |
105 | 0–127 | continuous | Assignable parameters G | |
/s1_mk2/assignable_parameters_g/assignable_parameter_106 |
106 | 0–127 | continuous | Assignable parameters G | |
/s1_mk2/assignable_parameters_g/assignable_parameter_107 |
107 | 0–127 | continuous | Assignable parameters G | |
/s1_mk2/assignable_parameters_g/assignable_parameter_108 |
108 | 0–127 | continuous | Assignable parameters G | |
/s1_mk2/assignable_parameters_g/assignable_parameter_109 |
109 | 0–127 | continuous | Assignable parameters G | |
/s1_mk2/assignable_parameters_g/assignable_parameter_110 |
110 | 0–127 | continuous | Assignable parameters G | |
/s1_mk2/assignable_parameters_g/assignable_parameter_111 |
111 | 0–127 | continuous | Assignable parameters G | |
/s1_mk2/assignable_parameters_h/assignable_parameter_112 |
112 | 0–127 | continuous | Assignable parameters H | |
/s1_mk2/assignable_parameters_h/assignable_parameter_113 |
113 | 0–127 | continuous | Assignable parameters H | |
/s1_mk2/assignable_parameters_h/assignable_parameter_114 |
114 | 0–127 | continuous | Assignable parameters H | |
/s1_mk2/assignable_parameters_h/assignable_parameter_115 |
115 | 0–127 | continuous | Assignable parameters H | |
/s1_mk2/assignable_parameters_h/assignable_parameter_116 |
116 | 0–127 | continuous | Assignable parameters H | |
/s1_mk2/assignable_parameters_h/assignable_parameter_117 |
117 | 0–127 | continuous | Assignable parameters H | |
/s1_mk2/assignable_parameters_h/assignable_parameter_118 |
118 | 0–127 | continuous | Assignable parameters H | |
/s1_mk2/assignable_parameters_h/assignable_parameter_119 |
119 | 0–127 | continuous | Assignable parameters H |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /s1_mk2/note/on <note> <velocity>, /s1_mk2/cc/<number> <value>, /s1_mk2/pitchbend <0-16383>, /s1_mk2/program_change <n>.
Limitations¶
CC/NRPN only. SysEx (preset management, display control, bulk dump/load, vendor-proprietary opcodes) is NOT covered by pencilresearch. To extend this device with SysEx, sniff the vendor editor, add `sysex.header/footer` + `commands` blocks, and use `update_device.md` PR template.