2, 1, 0, (SCM mus, SCM output_def, SCM key),
"Process @var{mus} according to @var{output_def}. \n"
"An interpretation context is set up,\n"
2, 1, 0, (SCM mus, SCM output_def, SCM key),
"Process @var{mus} according to @var{output_def}. \n"
"An interpretation context is set up,\n"