Josep M Comajuncosas wrote:
> 
> Any new opcode is welcome, but I think a nested allpass filter is not enough
> generic, I think the basic idea os a delay line inside another delay line ,
> something which is not possible with the current deltap/delayw implementation,
> would be more interesting as a general tool. I suggested something like a tapw
> opcode some months ago, to inject audio signals inside a delay line, this could
> do the job, or maybe making the delayw opcode linked to a particular delayr
> unit

I think that this is what pipad did within Music 11 (I had asked about
pipad a few days ago).  Too bad I don't have a PDP-11 to check things.
:)  Anyway, a deltapw opcode would be very cool, as well as a deltapwi.