diff --git a/src/looper.c b/src/looper.c
index 10d694d..d251ee6 100644
--- a/src/looper.c
+++ b/src/looper.c
@@ -145,13 +145,15 @@ int process_callback(jack_nframes_t nframes, void *arg) {
     /* Guard against NULL ports (e.g. if port registration failed) */
     if (active_channels[c].type == CHANNEL_AUDIO) {
       if (!active_channels[c].audio_in || !active_channels[c].audio_out) {
-        fprintf(stderr, "WARN: channel %d has NULL audio port(s), skipping\n", c);
+        fprintf(stderr, "WARN: channel %d has NULL audio port(s), skipping\n",
+                c);
         continue;
       }
     } else {
       /* CHANNEL_MIDI */
       if (!active_channels[c].midi_in || !active_channels[c].midi_out) {
-        fprintf(stderr, "WARN: channel %d has NULL MIDI port(s), skipping\n", c);
+        fprintf(stderr, "WARN: channel %d has NULL MIDI port(s), skipping\n",
+                c);
         continue;
       }
     }
@@ -187,26 +189,38 @@ int process_callback(jack_nframes_t nframes, void *arg) {
       /* MIDI channel handling */
       switch (state) {
       case STATE_RECORD: {
-        void *midi_in_buf = jack_port_get_buffer(active_channels[c].midi_in, nframes);
+        void *midi_in_buf =
+            jack_port_get_buffer(active_channels[c].midi_in, nframes);
         if (midi_in_buf) {
           jack_nframes_t nevents = jack_midi_get_event_count(midi_in_buf);
           jack_midi_event_t ev;
           for (jack_nframes_t j = 0; j < nevents; j++) {
-            if (jack_midi_event_get(&ev, midi_in_buf, j) != 0) continue;
+            if (jack_midi_event_get(&ev, midi_in_buf, j) != 0)
+              continue;
             if (active_channels[c].record_pos < MAX_MIDI_EVENTS) {
-              active_channels[c].loop.midi_events[active_channels[c].record_pos].timestamp = ev.time;
-              active_channels[c].loop.midi_events[active_channels[c].record_pos].status = ev.buffer[0];
-              active_channels[c].loop.midi_events[active_channels[c].record_pos].note = (ev.size > 1) ? ev.buffer[1] : 0;
-              active_channels[c].loop.midi_events[active_channels[c].record_pos].velocity = (ev.size > 2) ? ev.buffer[2] : 0;
+              active_channels[c]
+                  .loop.midi_events[active_channels[c].record_pos]
+                  .timestamp = ev.time;
+              active_channels[c]
+                  .loop.midi_events[active_channels[c].record_pos]
+                  .status = ev.buffer[0];
+              active_channels[c]
+                  .loop.midi_events[active_channels[c].record_pos]
+                  .note = (ev.size > 1) ? ev.buffer[1] : 0;
+              active_channels[c]
+                  .loop.midi_events[active_channels[c].record_pos]
+                  .velocity = (ev.size > 2) ? ev.buffer[2] : 0;
               active_channels[c].record_pos++;
             }
           }
           /* forward incoming MIDI to output during record */
-          void *midi_out_buf = jack_port_get_buffer(active_channels[c].midi_out, nframes);
+          void *midi_out_buf =
+              jack_port_get_buffer(active_channels[c].midi_out, nframes);
           if (midi_out_buf) {
             jack_midi_clear_buffer(midi_out_buf);
             for (jack_nframes_t j = 0; j < nevents; j++) {
-              if (jack_midi_event_get(&ev, midi_in_buf, j) != 0) continue;
+              if (jack_midi_event_get(&ev, midi_in_buf, j) != 0)
+                continue;
               jack_midi_event_write(midi_out_buf, ev.time, ev.buffer, ev.size);
             }
           }
@@ -214,10 +228,12 @@ int process_callback(jack_nframes_t nframes, void *arg) {
         break;
       }
       case STATE_LOOPING: {
-        void *midi_out_buf = jack_port_get_buffer(active_channels[c].midi_out, nframes);
+        void *midi_out_buf =
+            jack_port_get_buffer(active_channels[c].midi_out, nframes);
         if (midi_out_buf) {
           jack_midi_clear_buffer(midi_out_buf);
-          int cnt = active_channels[c].loop_count;   /* number of recorded events */
+          int cnt =
+              active_channels[c].loop_count; /* number of recorded events */
           if (cnt > 0) {
             /* simple: output all recorded events at frame 0 of each cycle */
             for (int e = 0; e < cnt; e++) {
@@ -237,14 +253,17 @@ int process_callback(jack_nframes_t nframes, void *arg) {
       default: /* IDLE */
         /* pass through MIDI input to output */
         {
-          void *midi_in_buf = jack_port_get_buffer(active_channels[c].midi_in, nframes);
-          void *midi_out_buf = jack_port_get_buffer(active_channels[c].midi_out, nframes);
+          void *midi_in_buf =
+              jack_port_get_buffer(active_channels[c].midi_in, nframes);
+          void *midi_out_buf =
+              jack_port_get_buffer(active_channels[c].midi_out, nframes);
           if (midi_in_buf && midi_out_buf) {
             jack_midi_clear_buffer(midi_out_buf);
             jack_nframes_t nevents = jack_midi_get_event_count(midi_in_buf);
             jack_midi_event_t ev;
             for (jack_nframes_t j = 0; j < nevents; j++) {
-              if (jack_midi_event_get(&ev, midi_in_buf, j) != 0) continue;
+              if (jack_midi_event_get(&ev, midi_in_buf, j) != 0)
+                continue;
               jack_midi_event_write(midi_out_buf, ev.time, ev.buffer, ev.size);
             }
           }
@@ -265,8 +284,8 @@ int process_callback(jack_nframes_t nframes, void *arg) {
           const float *f_in = (const float *)in;
           for (i = 0; i < nframes; i++) {
             if (active_channels[c].record_pos < LOOP_BUF_SIZE)
-              active_channels[c].loop.audio_buffer[active_channels[c].record_pos++] =
-                  f_in[i];
+              active_channels[c]
+                  .loop.audio_buffer[active_channels[c].record_pos++] = f_in[i];
             f_out[i] = f_in[i];
           }
         } else {
@@ -278,8 +297,8 @@ int process_callback(jack_nframes_t nframes, void *arg) {
         if (active_channels[c].loop_count > 0) {
           float *outf = (float *)out;
           for (i = 0; i < nframes; i++) {
-            outf[i] =
-                active_channels[c].loop.audio_buffer[active_channels[c].playback_pos];
+            outf[i] = active_channels[c]
+                          .loop.audio_buffer[active_channels[c].playback_pos];
             active_channels[c].playback_pos =
                 (active_channels[c].playback_pos + 1) %
                 active_channels[c].loop_count;