Check the playing status of the music stream.
Defined in <SDL3_mixer/SDL_mixer.h>
bool Mix_PlayingMusic(void);
(bool) Returns true if music is playing, false otherwise.
If music is currently playing, this function returns 1. Otherwise it returns 0.
Paused music is treated as playing, even though it is not currently making forward progress in mixing.
This function is available since SDL_mixer 3.0.0.