I don't have LoopBe1 but I've used MIDI YOKE. It's a virtual cable as well.You can have up to 16 virtual cables. You need only one.So here's what you do assuming your soundcard is OK with it. It should be.
1. Use midi yoke 1 as your output driver in BIAB
2. In your host program use midiyoke as your input driver for as many tracks as you need.And assign the approprite channels for those tracks that coincide with the BIAB instrument channels
3. assign each of those tracks to a particular DXi/VSTi
4. Route the audio from those DXi/VSTi to your sound card.
5. In BIAB route the audio to your sound card.RTs & RDs
6. In BIAB go to :OPT./PREFS/output channel
7. In this screen check off "output chords" as set up it'll output basic chords on channel 5.
8. In the host again set a track to receive midiyoke 1 on channel 5
9. set this track to output to your hardware midi interface that is plugged into the midi in of your Vocalist
10. Make sure the Vocalist is set to receive the chord info on channel 5.

This is how I did it in the olden days. Hope this helps.

John
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