Radamés is impermeable. When he does popular music, that is really popular music. When he does concert music, that is by all means concert music. One does not touch the other. As the arranger or conductor, he knows how to handle it. Under his command, a symphonic orchestra would play a samba without loosing its spirit and still not sounding as a symphony.
The musician with a distinguishing open mind has no other option: to respect him.