diff -urN midi_prog-/main.c midi_prog/main.c
--- midi_prog-/main.c	Wed Jun  3 00:00:00 2015
+++ midi_prog/main.c	Tue Sep  8 00:00:00 2015
@@ -75,6 +75,7 @@
 	int tempo, tempo_delta_sum;
 	double tempo_sec;
 	pthread_t pth;
+	int verb = opt_idx("-v", ac, av) > 0;
 
 	tone_init();
 	out_init(&otr, ac, av);
@@ -100,6 +101,14 @@
 	while((v = rd_delta()) != EOF){
 		delta_sum += v;
 		sec = tempo_sec + (double)(delta_sum - tempo_delta_sum) / div4 * tempo * 0.000001;
+		if(verb){
+			static int bs = -1;
+			int s = (int)sec;
+			if(s != bs){
+				bs = s;
+				fprintf(stderr, "%d sec   \r", s);
+			}
+		}
 		
 		if((v = rd()) & 0x80){
 			hi = (v >> 4) & 0xf;
diff -urN midi_prog-/pitdet.c midi_prog/pitdet.c
--- midi_prog-/pitdet.c	Sat Sep  5 00:00:00 2015
+++ midi_prog/pitdet.c	Tue Sep  8 00:00:00 2015
@@ -48,6 +48,9 @@
 	pd->max_v = -1;
 
 	if((pd->wk = malloc(sizeof(*pd->wk) * pd->m)) == NULL) ERR("No Mem");
+
+	pd->save = fp_get("-pd_save", ac, av, NULL, "w", NULL);
+	pd->load = fp_get("-pd_load", ac, av, NULL, "r", NULL);
 }
 
 void
@@ -56,15 +59,13 @@
 	int j;
 
 	for(j=0; j<pd->m; j++){
-		double v = tbuf_get_dbl(&pd->arr[j].ab.tb, sec);
+		double v = pitdet_get(pd, j, sec);
 		int onoff = pitdet_onoff_judge(pd, v);
 		pd->wk[j].stat = onoff ? 0 : -1;
 		pd->wk[j].v = onoff ? v : -1;
 	}
 
-	if(!pd->shadow_cut_en) return;
-
-	while(1){
+	while(pd->shadow_cut_en){
 		int t = -1;
 		double v_max = 0;
 		for(j=0; j<pd->m; j++){
@@ -99,9 +100,16 @@
 			k = ABS(k);
 
 			pd->wk[j].v -= pd->wk[t].v * k;
-			if(!pitdet_onoff_judge(pd, pd->wk[j].v)) pd->wk[j].stat = -1;
+			if(!pitdet_onoff_judge(pd, pd->wk[j].v)){
+				pd->wk[j].stat = -1;
+				pd->wk[j].v = -1;
+			}
 		}
 	}
+
+	for(j=0; j<pd->m; j++){
+		tbuf_set_dbl(&pd->arr[j].ab.tb, sec, pd->wk[j].v);
+	}
 }
 
 void
@@ -127,7 +135,59 @@
 	if((pd->oldest.update = (pd->oldest.sec != osec)) != 0) pd->oldest.sec = osec;
 	if((pd->newest.update = (pd->newest.sec != nsec)) != 0) pd->newest.sec = nsec;
 
-	if(pd->newest.update && pd->newest.sec >= 0) pitdet_shadow_cut(pd, pd->newest.sec);
+	if(!pd->newest.update || pd->newest.sec < 0) return;
+
+	if(pd->save) pitdet_save(pd);
+
+	pitdet_shadow_cut(pd, pd->newest.sec);
+}
+
+double
+pitdet_get(struct pitdet *pd, int j, double sec)
+{
+	struct pitch *p = &pd->arr[j];
+	return tbuf_get_dbl(&p->ab.tb, sec);
+}
+
+static void
+wrt_dbl(FILE *fp, double v)
+{
+	fwrite(&v, sizeof(v), 1, fp);
+}
+
+static int
+rd_dbl(FILE *fp, double *ret_v)
+{
+	return fread(ret_v, sizeof(*ret_v), 1, fp) <= 0 ? EOF : 0;
+}
+
+void
+pitdet_save(struct pitdet *pd)
+{
+	int j;
+	double sec = pd->newest.sec;
+
+	wrt_dbl(pd->save, sec);
+	wrt_dbl(pd->save, pd->max_v);
+	for(j=0; j<pd->m; j++){
+		wrt_dbl(pd->save, pitdet_get(pd, j, sec));
+	}
+}
+
+int
+pitdet_load(struct pitdet *pd)
+{
+	int j;
+
+	if(rd_dbl(pd->load, &pd->newest.sec) == EOF) return EOF;
+	if(rd_dbl(pd->load, &pd->max_v) == EOF) return EOF;
+	for(j=0; j<pd->m; j++){
+		struct pitch *p = &pd->arr[j];
+		double v;
+		if(rd_dbl(pd->load, &v) == EOF) return EOF;
+		abuf_add(&p->ab, v);
+	}
+	return 0;
 }
 
 int
@@ -135,6 +195,12 @@
 {
 	struct tbuf *tb = &pd->arr[0].ab.tb;
 	return (int) tbuf_sec_to_sridx(tb, sec);
+}
+
+int
+pitdet_eq_sec(struct pitdet *pd, double sec1, double sec2)
+{
+	return pitdet_sec_to_tick(pd, sec1) == pitdet_sec_to_tick(pd, sec2);
 }
 
 int
diff -urN midi_prog-/pitdet.h midi_prog/pitdet.h
--- midi_prog-/pitdet.h	Sat Sep  5 00:00:00 2015
+++ midi_prog/pitdet.h	Tue Sep  8 00:00:00 2015
@@ -28,6 +28,8 @@
 		int stat;
 		double v;
 	} *wk;
+
+	FILE *save, *load;
 };
 
 double pitdet_note_to_freq(struct pitdet *pd, double note);
@@ -36,8 +38,13 @@
 void pitdet_init(struct pitdet *pd, double smp_freq, int ac, char **av);
 void pitdet_shadow_cut(struct pitdet *pd, double sec);
 void pitdet_add(struct pitdet *pd, double v);
+double pitdet_get(struct pitdet *pd, int j, double sec);
+
+void pitdet_save(struct pitdet *pd);
+int pitdet_load(struct pitdet *pd);
 
 int pitdet_sec_to_tick(struct pitdet *pd, double sec);
+int pitdet_eq_sec(struct pitdet *pd, double sec1, double sec2);
 int pitdet_onoff_judge(struct pitdet *pd, double v);
 
 #endif
diff -urN midi_prog-/tool.c midi_prog/tool.c
--- midi_prog-/tool.c	Sat Sep  5 00:00:00 2015
+++ midi_prog/tool.c	Tue Sep  8 00:00:00 2015
@@ -55,6 +55,8 @@
 	int j, js, je;
 	char s[32];
 	double sec = pd->newest.sec;
+	double detail_sec = opt_double("-show_detail_sec", ac, av, -1);
+	int detail = detail_sec >= 0 && pitdet_eq_sec(pd, detail_sec, sec);
 
 	sprintf(s, "sec=%f ", sec);
 	printf("%s", s);
@@ -62,7 +64,7 @@
 	show_spectre_modify_area(pd, ac, av, s, &js, &je);
 
 	for(j=js; j<je; j++){
-		double v = pd->wk[j].v;
+		double v = pitdet_get(pd, j, sec);
 		int iv = (int)(10 * v / pd->max_v);
 
 		if(iv < 0) iv = -1;
@@ -72,6 +74,29 @@
 		if(pd->div > 1 && j % pd->div == pd->div-1 && j != je-1) putchar(' ');
 	}
 	putchar('\n');
+
+	if(detail){
+		int show_w = opt_int("-show_w", ac, av, -1);
+		char buf[1024];
+		int x = 0, l;
+
+		putchar('\n');
+		for(j=0; j<pd->m; j++){
+			sprintf(buf, "%d:%f%s", j, pitdet_get(pd, j, sec),
+				pd->div > 1 && j % pd->div == pd->div-1 ? " | " : " ");
+			if(show_w >= 0){
+				l = strlen(buf);
+				if(x + l > show_w){
+					putchar('\n');
+					x = 0;
+				}
+				x += l;
+			}
+			printf("%s", buf);
+		}
+		putchar('\n');
+		putchar('\n');
+	}
 }
 
 struct note_onoff{
@@ -97,10 +122,16 @@
 	nto->cut_over_tone = opt_idx("-cut_over_tone", ac, av) > 0;
 }
 
+double
+note_onoff_v(struct note_onoff *nto, double on_sec, double off_sec)
+{
+	return abuf_mean(&nto->ab, on_sec, off_sec);
+}
+
 int
 note_onoff_velo(struct note_onoff *nto, double on_sec, double off_sec)
 {
-	double v = abuf_mean(&nto->ab, on_sec, off_sec);
+	double v = note_onoff_v(nto, on_sec, off_sec);
 	int velo = (int)(128 * v / nto->pd->max_v);
 	if(velo < 0) velo = 0;
 	if(velo > 127) velo = 127;
@@ -108,23 +139,25 @@
 }
 
 int
-note_onoff_is_overtone(struct note_onoff *nto, double on_sec, double off_sec, int velo)
+note_onoff_is_overtone(struct note_onoff *nto, double on_sec, double off_sec)
 {
 	/* Fundamental, Overtone */
 
-	int lst[] = { 12, 12+7, 12*2, 12*2+4, 12*2+7 };
+	int lst[] = { 12, 12+7, 12*2 };
 	int lst_n = ARR_N(lst);
 	int i, t;
+	double v = note_onoff_v(nto, on_sec, off_sec);
 
 	for(i=0; i<lst_n; i++){
 		struct note_onoff *funda;
-		int velo_f;
+		int n = i + 2;
+		double v_f;
 
 		if((t = nto->note - lst[i]) < 0) continue;
 		funda = &note_onoff[t]; /* ! */
-		velo_f = note_onoff_velo(funda, on_sec, off_sec);
+		v_f = note_onoff_v(funda, on_sec, off_sec);
 
-		if(velo_f >= velo * 0.7) return 1;
+		if(v_f >= v * n * 0.7) return 1;
 	}
 	return 0;
 }
@@ -157,7 +190,7 @@
 	}
 
 	if((velo = note_onoff_velo(nto, on_sec, off_sec)) == 0) return;
-	if(nto->cut_over_tone && note_onoff_is_overtone(nto, on_sec, off_sec, velo)) return;
+	if(nto->cut_over_tone && note_onoff_is_overtone(nto, on_sec, off_sec)) return;
 
 	tick = pitdet_sec_to_tick(nto->pd, on_sec);
 	printf("abs=%08d %s ch=%d note=%d velo=%d\n",
@@ -182,7 +215,7 @@
 		double sum = 0, v;
 		for(k=0; k<pd->div; k++){
 			int j = i * pd->div + k;
-			v = pd->wk[j].v;
+			v = pitdet_get(pd, j, sec);
 			int o = pitdet_onoff_judge(pd, v);
 			onoff |= o;
 			if(o) sum += v;
@@ -205,7 +238,6 @@
 	int abuf_wsec_chk = opt_idx("-abuf_wsec_chk", ac, av) > 0;
 	int sec, s;
 	FILE *pd_load = fp_get("-pd_load", ac, av, NULL, "r", NULL);
-	FILE *pd_save = fp_get("-pd_save", ac, av, NULL, "w", NULL);
 
 	in_init(&in, ac, av, NULL);
 	pitdet_init(&pd, in.smp_freq, ac, av);
@@ -222,15 +254,8 @@
 	}
 
 	while(pd_load){
-		int j;
-		if(fread(&pd.newest.sec, sizeof(double), 1, pd_load) <= 0) return 0;
-		fread(&pd.max_v, sizeof(double), 1, pd_load);
-		for(j=0; j<pd.m; j++){
-			struct pitch *p = &pd.arr[j];
-			double v;
-			fread(&v, sizeof(double), 1, pd_load);
-			abuf_add(&p->ab, v);
-		}
+		if(pitdet_load(&pd) == EOF) return 0;
+
 		pitdet_shadow_cut(&pd, pd.newest.sec);
 
 		if((s = (int)pd.newest.sec) != sec){
@@ -252,17 +277,6 @@
 		}
 
 		if(pd.newest.sec < 0) continue;
-
-		if(pd_save){
-			int j;
-			fwrite(&pd.newest.sec, sizeof(double), 1, pd_save);
-			fwrite(&pd.max_v, sizeof(double), 1, pd_save);
-			for(j=0; j<pd.m; j++){
-				struct pitch *p = &pd.arr[j];
-				double v = tbuf_get_dbl(&p->ab.tb, pd.newest.sec);
-				fwrite(&v, sizeof(double), 1, pd_save);
-			}
-		}
 
 		if(show) show_spectre(&pd, ac, av);
 		if(midi) midi_out(&pd);