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Fixing echo for AddmusicM?

I've been playing around with AMM lately and I'm interested in how could I make a song's echo SNES (aka bsnes) friendly?
This is my echo currently:

$EF $FE $19 $E6
$F1 $04 $46 $01

I've already tried several methods: doing the "v0" echo fix, so it became:

$EF $00 $00 $00
$F1 $04 $46 $01
v0c8/
$EF $FE $19 $E6

and then "convert" the AM4.05 header to AMM, so it'd have this in the beginning of the txt (if I'm not mistaken):

$F6 $2B $6D
$F6 $00 $7D
$F0

But unfortunately, the hack breaks in bsnes when Mario dies and the song becomes screwy afterwards (several noises in the background). Interestingly, there are no problems when entering the level.
I'd be more than glad if someone could help me with this.

Thanks a lot in advance!
Originally posted by Hadron

But unfortunately, the hack breaks in bsnes when Mario dies

This happened to me too, the only way I could fix that glitch was lowering the echo to a $02 value.
Originally posted by RednGreen
This happened to me too, the only way I could fix that glitch was lowering the echo to a $02 value.


What do you mean by "lowering the echo to a $02 value"? The delay value ($F1 $XX)? Just because I lowered it to $02 and it still breaks, and I'm pretty sure (hopefully) that the echo is the faulty, because when I removed it, it worked well.

Or I could send the port to you, maybe it would help a bit more...

edit: turns out the Death music was the faulty after all, because it contains echo. Now I removed the echo from the Death music, there's still some bad clicking noise, but much better than before.
Make sure the feedback is not too high either (this was a previous problem in another thread) and most importantly, check if the song has more echo commands.