Roland A-880 MIDI Patchbay
Roland A-880 midi patcher and merger to interconnect MIDI devices (e.g., my synthesizers, hammond, etc) but also to connect these instruments to my computer using the simple Roland UM-1G USB MIDI interface. This allows to record MIDI into the DAW or to play MIDI files from the DAW while using my synthesizers as sound source. The Roland A-880 allows to patch 1 MIDI channel to 1 or more other channels. However, only two MIDI channels can be merged.
Images: the Roland A880
Image: the Roland UM-1G USB MIDI interface