Until the command set loop start / set loop end is not available,
i imagined the sample replay loop command xRxx (example on a 64 steps pattern 64 steps fit sample)
C401 - - - - - -
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- 0R01 <<<< replay the sample loop from the last tick
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0R04 <<< replay sample loop from the last step
0R0A <<< replay sample loop from the lasts 4 steps
0R40 <<< replay sample from loop the last block
0R80 <<< replay sample loop from the lasts 2 blocks etc etc…
and maybe 1R00 to stop looping and continue to play
ex: the sample “call on me” , 0R01 on the end (“e”) will give “call on meeeeeeeeeeeeeeeee”
0R04------------------------------“call on mememememememe”
0R0A------------------------------“call on me on me on me on me”
I let you imagine that on a breakbeat