// speed - play speed for SLOW/FAST playback, zero defaults to slow=.5,fast=2.
void handle_transport(int command, int wait_tracking=0,
int use_inout=0, int toggle_audio=0, int loop_play=0, float speed=0);
// speed - play speed for SLOW/FAST playback, zero defaults to slow=.5,fast=2.
void handle_transport(int command, int wait_tracking=0,
int use_inout=0, int toggle_audio=0, int loop_play=0, float speed=0);