Anyone know how to make this work?

I have it playing the file fine, the two issues I have 

1.) seems to loop

2.) unable to control it even using *41234 first -

tried with | and , neither works - with the option 4000|4|6|0|1)...

extensions.conf 

exten => 1234,1,ControlPlayback(/etc/asterisk/scripts/ARNL/nslnp,4000,4,6,0,1)

exten=1234,1,Answer

exten=1234,n,Playback,rpt/node

exten=1234,n,Rpt,1234|Pv

Am I missing something or is this just not practical with app_rpt?

seems this along with AGI options in asterisk could make for some interesting features.