| MIDI Mapping | ||||||||||
| I/F:MIDI Express XT② | ||||||||||
| IN Port | MIDI CH | Device Name | Device Port | Device CH | OUT Port | MIDI CH | Device Name | Device Port | Device CH | |
| 1 | 1 | UM-880 | 1 | 1 | 1 | 1 | SC-88 A（SC-55） | 1 | 1 | |
| 2 | UM-880 | 1 | 2 | 2 | SC-88 A（SC-55） | 1 | 2 | |||
| 3 | UM-880 | 1 | 3 | 3 | SC-88 A（SC-55） | 1 | 3 | |||
| 4 | UM-880 | 1 | 4 | 4 | SC-88 A（SC-55） | 1 | 4 | |||
| 5 | UM-880 | 1 | 5 | 5 | SC-88 A（SC-55） | 1 | 5 | |||
| 6 | UM-880 | 1 | 6 | 6 | SC-88 A（SC-55） | 1 | 6 | |||
| 7 | UM-880 | 1 | 7 | 7 | SC-88 A（SC-55） | 1 | 7 | |||
| 8 | UM-880 | 1 | 8 | 8 | SC-88 A（SC-55） | 1 | 8 | |||
| 9 | UM-880 | 1 | 9 | 9 | SC-88 A（SC-55） | 1 | 9 | |||
| 10 | UM-880 | 1 | 10 | 10 | SC-88 A（SC-55） | 1 | 10 | |||
| 11 | UM-880 | 1 | 11 | 11 | SC-88 A（SC-55） | 1 | 11 | |||
| 12 | UM-880 | 1 | 12 | 12 | SC-88 A（SC-55） | 1 | 12 | |||
| 13 | UM-880 | 1 | 13 | 13 | SC-88 A（SC-55） | 1 | 13 | |||
| 14 | UM-880 | 1 | 14 | 14 | SC-88 A（SC-55） | 1 | 14 | |||
| 15 | UM-880 | 1 | 15 | 15 | SC-88 A（SC-55） | 1 | 15 | |||
| 16 | UM-880 | 1 | 16 | 16 | SC-88 A（SC-55） | 1 | 16 | |||
| 2 | 1 | UM-880 | 2 | 1 | 2 | 1 | ME-1 | 1 | 1 | |
| 2 | UM-880 | 2 | 2 | 2 | ME-1 | 1 | 2 | |||
| 3 | UM-880 | 2 | 3 | 3 | ME-1 | 1 | 3 | |||
| 4 | UM-880 | 2 | 4 | 4 | ME-1 | 1 | 4 | |||
| 5 | UM-880 | 2 | 5 | 5 | ME-1 | 1 | 5 | |||
| 6 | UM-880 | 2 | 6 | 6 | ME-1 | 1 | 6 | |||
| 7 | UM-880 | 2 | 7 | 7 | ME-1 | 1 | 7 | |||
| 8 | UM-880 | 2 | 8 | 8 | ME-1 | 1 | 8 | |||
| 9 | UM-880 | 2 | 9 | 9 | ME-1 | 1 | 9 | |||
| 10 | UM-880 | 2 | 10 | 10 | ME-1 | 1 | 10 | |||
| 11 | UM-880 | 2 | 11 | 11 | ME-1 | 1 | 11 | |||
| 12 | UM-880 | 2 | 12 | 12 | ME-1 | 1 | 12 | |||
| 13 | UM-880 | 2 | 13 | 13 | ME-1 | 1 | 13 | |||
| 14 | UM-880 | 2 | 14 | 14 | ME-1 | 1 | 14 | |||
| 15 | UM-880 | 2 | 15 | 15 | ME-1 | 1 | 15 | |||
| 16 | UM-880 | 2 | 16 | 16 | ME-1 | 1 | 16 | |||
| 3 | 1 | UM-880 | 3 | 1 | 3 | 1 | A-880② | 1 | 1 | |
| 2 | UM-880 | 3 | 2 | 2 | A-880② | 1 | 2 | |||
| 3 | UM-880 | 3 | 3 | 3 | A-880② | 1 | 3 | |||
| 4 | UM-880 | 3 | 4 | 4 | A-880② | 1 | 4 | |||
| 5 | UM-880 | 3 | 5 | 5 | A-880② | 1 | 5 | |||
| 6 | UM-880 | 3 | 6 | 6 | A-880② | 1 | 6 | |||
| 7 | UM-880 | 3 | 7 | 7 | A-880② | 1 | 7 | |||
| 8 | UM-880 | 3 | 8 | 8 | A-880② | 1 | 8 | |||
| 9 | UM-880 | 3 | 9 | 9 | A-880② | 1 | 9 | |||
| 10 | UM-880 | 3 | 10 | 10 | A-880② | 1 | 10 | |||
| 11 | UM-880 | 3 | 11 | 11 | A-880② | 1 | 11 | |||
| 12 | UM-880 | 3 | 12 | 12 | A-880② | 1 | 12 | |||
| 13 | UM-880 | 3 | 13 | 13 | A-880② | 1 | 13 | |||
| 14 | UM-880 | 3 | 14 | 14 | A-880② | 1 | 14 | |||
| 15 | UM-880 | 3 | 15 | 15 | A-880② | 1 | 15 | |||
| 16 | UM-880 | 3 | 16 | 16 | A-880② | 1 | 16 | |||
| 4 | 1 | UM-880 | 4 | 1 | 4 | 1 | A-880② | 2 | 1 | |
| 2 | UM-880 | 4 | 2 | 2 | A-880② | 2 | 2 | |||
| 3 | UM-880 | 4 | 3 | 3 | A-880② | 2 | 3 | |||
| 4 | UM-880 | 4 | 4 | 4 | A-880② | 2 | 4 | |||
| 5 | UM-880 | 4 | 5 | 5 | A-880② | 2 | 5 | |||
| 6 | UM-880 | 4 | 6 | 6 | A-880② | 2 | 6 | |||
| 7 | UM-880 | 4 | 7 | 7 | A-880② | 2 | 7 | |||
| 8 | UM-880 | 4 | 8 | 8 | A-880② | 2 | 8 | |||
| 9 | UM-880 | 4 | 9 | 9 | A-880② | 2 | 9 | |||
| 10 | UM-880 | 4 | 10 | 10 | A-880② | 2 | 10 | |||
| 11 | UM-880 | 4 | 11 | 11 | A-880② | 2 | 11 | |||
| 12 | UM-880 | 4 | 12 | 12 | A-880② | 2 | 12 | |||
| 13 | UM-880 | 4 | 13 | 13 | A-880② | 2 | 13 | |||
| 14 | UM-880 | 4 | 14 | 14 | A-880② | 2 | 14 | |||
| 15 | UM-880 | 4 | 15 | 15 | A-880② | 2 | 15 | |||
| 16 | UM-880 | 4 | 16 | 16 | A-880② | 2 | 16 | |||
| 5 | 1 | UM-880 | 5 | 1 | 5 | 1 | SC-88 B | 2 | 1 | |
| 2 | UM-880 | 5 | 2 | 2 | SC-88 B | 2 | 2 | |||
| 3 | UM-880 | 5 | 3 | 3 | SC-88 B | 2 | 3 | |||
| 4 | UM-880 | 5 | 4 | 4 | SC-88 B | 2 | 4 | |||
| 5 | UM-880 | 5 | 5 | 5 | SC-88 B | 2 | 5 | |||
| 6 | UM-880 | 5 | 6 | 6 | SC-88 B | 2 | 6 | |||
| 7 | UM-880 | 5 | 7 | 7 | SC-88 B | 2 | 7 | |||
| 8 | UM-880 | 5 | 8 | 8 | SC-88 B | 2 | 8 | |||
| 9 | UM-880 | 5 | 9 | 9 | SC-88 B | 2 | 9 | |||
| 10 | UM-880 | 5 | 10 | 10 | SC-88 B | 2 | 10 | |||
| 11 | UM-880 | 5 | 11 | 11 | SC-88 B | 2 | 11 | |||
| 12 | UM-880 | 5 | 12 | 12 | SC-88 B | 2 | 12 | |||
| 13 | UM-880 | 5 | 13 | 13 | SC-88 B | 2 | 13 | |||
| 14 | UM-880 | 5 | 14 | 14 | SC-88 B | 2 | 14 | |||
| 15 | UM-880 | 5 | 15 | 15 | SC-88 B | 2 | 15 | |||
| 16 | UM-880 | 5 | 16 | 16 | SC-88 B | 2 | 16 | |||
| 6 | 1 | UM-880 | 6 | 1 | 6 | 1 | ||||
| 2 | UM-880 | 6 | 2 | 2 | ||||||
| 3 | UM-880 | 6 | 3 | 3 | ||||||
| 4 | UM-880 | 6 | 4 | 4 | ||||||
| 5 | UM-880 | 6 | 5 | 5 | ||||||
| 6 | UM-880 | 6 | 6 | 6 | ||||||
| 7 | UM-880 | 6 | 7 | 7 | ||||||
| 8 | UM-880 | 6 | 8 | 8 | ||||||
| 9 | UM-880 | 6 | 9 | 9 | ||||||
| 10 | UM-880 | 6 | 10 | 10 | ||||||
| 11 | UM-880 | 6 | 11 | 11 | ||||||
| 12 | UM-880 | 6 | 12 | 12 | ||||||
| 13 | UM-880 | 6 | 13 | 13 | ||||||
| 14 | UM-880 | 6 | 14 | 14 | ||||||
| 15 | UM-880 | 6 | 15 | 15 | ||||||
| 16 | UM-880 | 6 | 16 | 16 | ||||||
| 7 | 1 | UM-880 | 7 | 1 | 7 | 1 | ||||
| 2 | UM-880 | 7 | 2 | 2 | ||||||
| 3 | UM-880 | 7 | 3 | 3 | ||||||
| 4 | UM-880 | 7 | 4 | 4 | ||||||
| 5 | UM-880 | 7 | 5 | 5 | ||||||
| 6 | UM-880 | 7 | 6 | 6 | ||||||
| 7 | UM-880 | 7 | 7 | 7 | ||||||
| 8 | UM-880 | 7 | 8 | 8 | ||||||
| 9 | UM-880 | 7 | 9 | 9 | ||||||
| 10 | UM-880 | 7 | 10 | 10 | ||||||
| 11 | UM-880 | 7 | 11 | 11 | ||||||
| 12 | UM-880 | 7 | 12 | 12 | ||||||
| 13 | UM-880 | 7 | 13 | 13 | ||||||
| 14 | UM-880 | 7 | 14 | 14 | ||||||
| 15 | UM-880 | 7 | 15 | 15 | ||||||
| 16 | UM-880 | 7 | 16 | 16 | ||||||
| 8 | 1 | UM-880 | 8 | 1 | 8 | 1 | ||||
| 2 | UM-880 | 8 | 2 | 2 | ||||||
| 3 | UM-880 | 8 | 3 | 3 | ||||||
| 4 | UM-880 | 8 | 4 | 4 | ||||||
| 5 | UM-880 | 8 | 5 | 5 | ||||||
| 6 | UM-880 | 8 | 6 | 6 | ||||||
| 7 | UM-880 | 8 | 7 | 7 | ||||||
| 8 | UM-880 | 8 | 8 | 8 | ||||||
| 9 | UM-880 | 8 | 9 | 9 | ||||||
| 10 | UM-880 | 8 | 10 | 10 | ||||||
| 11 | UM-880 | 8 | 11 | 11 | ||||||
| 12 | UM-880 | 8 | 12 | 12 | ||||||
| 13 | UM-880 | 8 | 13 | 13 | ||||||
| 14 | UM-880 | 8 | 14 | 14 | ||||||
| 15 | UM-880 | 8 | 15 | 15 | ||||||
| 16 | UM-880 | 8 | 16 | 16 | ||||||