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GFI System GFI Specular Tempus: MIDI CC, NRPN and OSC map

The GFI System GFI Specular Tempus as named OSC addresses — 15 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device GFI System GFI Specular Tempus
Vendor GFI System
OSC prefix /gfi_specular_tempus
Source 🎛️ Derived from an Electra One community preset
Revision per Electra preset
Upstream electra-preset
Driver file devices/gfi-system/gfi_specular_tempus.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/gfi-system/gfi_specular_tempus.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /gfi_specular_tempus/by_pass 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as gfi_specular_tempus: ask “what can the GFI System GFI Specular Tempus do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (15)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/gfi_specular_tempus/by_pass 22 0–127 continuous
/gfi_specular_tempus/bank_up 21 0–127 continuous
/gfi_specular_tempus/bank_down 20 0–127 continuous
/gfi_specular_tempus/patch_a 18 0–127 continuous
/gfi_specular_tempus/patch_b 19 0–127 continuous
/gfi_specular_tempus/decay_time 15 0–127 continuous
/gfi_specular_tempus/param 16 0–127 continuous
/gfi_specular_tempus/intens_repeats 17 0–127 continuous
/gfi_specular_tempus/auto_swell 24 0–127 continuous
/gfi_specular_tempus/kill_dry 23 0–127 continuous
/gfi_specular_tempus/warp_triplet 26 0–127 continuous
/gfi_specular_tempus/warp_half 27 0–127 continuous
/gfi_specular_tempus/warp_dotted_8t 28 0–127 continuous
/gfi_specular_tempus/subdivision 0 0–127 continuous
/gfi_specular_tempus/blend 14 0–127 continuous

Performance MIDI

Notes, pitch bend and any CC are also available: /gfi_specular_tempus/note/on <note> <velocity>, /gfi_specular_tempus/cc/<number> <value>, /gfi_specular_tempus/pitchbend <0-16383>, /gfi_specular_tempus/program_change <n>.

Limitations

Imported from an Electra One community preset. The mapping reflects the preset author's editorial choices: parameter naming, ranges, and which params are exposed. Untested on hardware in this repo.