Emu XL-7 & MP-7 User's Group

Actually Dana I have to step in and tell you that you're 100% wrong.
I am an ER-1 owner so listen up ;).
Set sync to external on the ER-1 and set the midi channel of your 
choice.
Configure the appropriate track on the XX-7 to external only same 
midi channel.
Press the Midi button (last function button in ER-1) and scroll down 
to filter . Make sure you turn all filtering off so the display 
blinks like this " - - - " . This disable Program changes etc etc .
Now progaram a set of percussion sounds (small kit in the ER-1)
DO NOT STEP PROGRAM ANYTHING ON THE ER-1 !!!!!!!
Set the XX-7 into grid mode and assign the pads on the ER-1 to 
corresponding Midi note numbers of keys with an octave keyspan.
The ER-1 can be programmed in realtime ,step and grid modes via the 
XX-7 with full velocity control ,all the swing ,scale and clock 
offset options of the sequncer in the XX-7 apply.
The ER-1 sequencer will light up the  > (play button).
However it's tempo will be locked to the XX-7 and all note data will 
be recieved from the XX-7 as nothing is stored on the coresponding 
ER-1 pattern other than tempo sync delay and the sounds themselves.
You can set the ER-1 to respond under midi filter to PC messages and 
have a swag of programmmed kits without and pattern data stored in 
the ER-1 for recall and full dynamic sequencing on the XX-7.
Lastly - the only limitation you will have is Motion sequencing.
The XX-7's do no recognise NRPRN's and therefore realtime knobtweeks 
cannot be recorded into the XX-7's sequencer.
However if you hit record and play on the ER-1 empty pattern and 
tweek the knobs then store. The Motion sequncers will be store in 
the pattern and the XX-7 can do all the other work for you with all 
those time signature features you wan't.
Trust ME it DOES WORK !!!!!!!!!