 
 volatile uint8_t stage, step;
 volatile bool gate, clock_gate, retrigger, reverse;
+
+DUINO_Filter * slew_filter;
 
 void clock_isr();
 void reset_isr();

    }

    // set pitch CV state
    cv_out(CO1, seq_values.stage_cv[cached_stage]);

    // set gate and clock states
    gt_out(GT5, gate);


#include <du-ino_function.h>
#include <du-ino_interface.h>
#include <du-ino_dsp.h>
#include <TimerOne.h>
#include <avr/pgmspace.h>
#include <util/atomic.h>
