diff --git a/share/man/man4/midi.4 b/share/man/man4/midi.4
index 27ebee4c5a89..b0b967668145 100644
--- a/share/man/man4/midi.4
+++ b/share/man/man4/midi.4
@@ -1,4 +1,4 @@
-.\" $NetBSD: midi.4,v 1.3 1998/08/18 08:16:56 augustss Exp $
+.\" $NetBSD: midi.4,v 1.4 1998/08/22 14:45:35 augustss Exp $
 .\" Copyright (c) 1997 The NetBSD Foundation, Inc.
 .\" All rights reserved.
 .\"
@@ -65,6 +65,12 @@ devices provides raw access to a MIDI device.  Data written is sent
 to the physical device as fast as possible and is uninterpreted.
 Reading from the device returns data as soon as it becomes available.
 A moderate amount of buffering is available both for reading and writing.
+The raw MIDI devices are mostly useful for non realtime operations, such as
+downloading patches to a device, since it is hard to get the accurate timing
+needed for quality music from a user program.  But the devices can act as
+a simple patchboard for MIDI devices.  For example, a MIDI keyboard could
+be connected to a synthesizer by the command
+.Cd "cat -u /dev/rmidi1 >/dev/rmidi2"
 .Pp
 The 
 .Pa /dev/music