Question

The musicians were sitting up their instruments change into passive voice

Answer 1

❥ The musicians has been set up their instruments..

☆hope it helps you☆

Answer 2

$\large\mathcal{\green{❥ᴀ᭄ɴsᴡᴇʀ࿐}}$

$\huge \underline{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }$

❥ The musicians has been set up their instruments..

$\huge \underline{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }$

☆hope it helps you☆