#define SAMPLE_RATE 44100
#define FRAME_STEP 4410 //0.1 second time steps

float *SynthLeftBuffer, *SynthRightBuffer;
fluid_sequencer_t *Sequencer;
fluid_synth_t *Synth;

void main_loop() {
    event_t *NextEvent = get_next_event();
	fluid_event_t *FluidEvent = new_fluid_event();
	
    size_t CurrentFrame = 0;
    for (;;) {
        size_t TargetFrame = CurrentFrame + FRAME_STEP;
        while (NextEvent->Frame <= TargetFrame) {
        	if (NextEvent->is_fluid_event()) {
	            NextEvent->as_fluid_event(FluidEvent);
	            fluid_sequencer_send_at(Sequencer, FluidEvent, NextEvent->Frame * 1000.0 / SAMPLE_RATE, 1);
	        } else if (NextEvent->is_lv2_event()) {
	            // do something else
	        };
	        NextEvent = get_next_event();
        };
        fluid_synth_write_float(Synth, TIME_STEP, SynthLeftBuffer, 0, 1, SynthRightBuffer 0, 1);
        // process buffers using lv2 and other filters
        write_buffers_to_output();
        CurrentFrame = TargetFrame;
    };
};