this is my result, but this does not work yet pefectly…

// custom taxonomy ‘band’ exit in current and global blog
$tax_band = wp_get_object_terms($post_id, ‘band’, array(‘fields’ => ‘names’));

// after if( $global_post->ID != ” ) {
wp_delete_object_term_relationships( $global_post->ID, ‘band’ );

// after $p = wp_insert_post( $post );
wp_set_object_terms($p, $tax_band, ‘band’, $append = false);

it work not by publishing, but after editing.