that depends on a few things
if your bard is just using
mq2twist and not a macro to make him twist you could use eqbc or dannet to issue a comand for him to stop his twist
using eqbc it would be something like
/bct bardname /twist stop
and then
/bct bardname //twist start
if you're using a macro like kissassist - and you want to pause kissassist and twist you would want to
/bct bardname //multiline ; /mqp on; /twist stop
then
/bct bardname //multiline ; /mqp off; /twist start