diff --git a/src/tools/midifile.c b/src/tools/midifile.c
index 8d079e772..950eba563 100644
--- a/src/tools/midifile.c
+++ b/src/tools/midifile.c
@@ -364,6 +364,9 @@ int midi_file_read_event(struct midi_file *mf, struct midi_event *event)
 		if ((res = parse_varlen(mf, tr, &size)) < 0)
 			return res;
 
+		event->meta.offset = tr->p - event->data;
+		event->meta.size = size;
+
 		switch (meta) {
 		case 0x2f:
 			tr->eof = true;
@@ -373,7 +376,7 @@ int midi_file_read_event(struct midi_file *mf, struct midi_event *event)
 				return -EINVAL;
 			mf->tick_sec = event->sec;
 			mf->tick_start = tr->tick;
-			mf->tempo = (tr->p[0]<<16) | (tr->p[1]<<8) | tr->p[2];
+			event->meta.parsed.tempo.uspqn = mf->tempo = (tr->p[0]<<16) | (tr->p[1]<<8) | tr->p[2];
 			break;
 		}
 		size += tr->p - event->data;
diff --git a/src/tools/midifile.h b/src/tools/midifile.h
index f297eb7ae..68edc76b3 100644
--- a/src/tools/midifile.h
+++ b/src/tools/midifile.h
@@ -33,6 +33,15 @@ struct midi_event {
 	double sec;
 	uint8_t *data;
 	uint32_t size;
+	struct {
+		uint32_t offset;
+		uint32_t size;
+		union {
+			struct {
+				uint32_t uspqn; /* microseconds per quarter note */
+			} tempo;
+		} parsed;
+	} meta;
 };
 
 struct midi_file_info {