diff --git a/doc/dox/internals/midi.dox b/doc/dox/internals/midi.dox
index e89b24578..819652bd6 100644
--- a/doc/dox/internals/midi.dox
+++ b/doc/dox/internals/midi.dox
@@ -69,6 +69,33 @@ and consumers must be enabled explicitly. UMP in producers is supported
 still and will be converted to Midi1 by all consumers that did not explicitly
 enable UMP support.
 
+## SysEx
+
+SysEx messages in Midi1 can be of unlimited length. They start with an
+F0 byte and end with a F7 byte. Because of the buffer data length limitations,
+it might be necessary to split a MIDI1 SysEx message accross multiple
+buffers.
+
+The stategy to implement this is specified in RFC 6295 (RTP Midi) section
+3.2. Long SysEx messages can be split up into parts by using the following
+start/end bytes combinations:
+
+ |-----------------------------------------------------------|
+ | Sublist Position |  Head Status Octet | Tail Status Octet |
+ |-----------------------------------------------------------|
+ |    first         |       0xF0         |       0xF0        |
+ |-----------------------------------------------------------|
+ |    middle        |       0xF7         |       0xF0        |
+ |-----------------------------------------------------------|
+ |    last          |       0xF7         |       0xF7        |
+ |-----------------------------------------------------------|
+ |    cancel        |       0xF7         |       0xF4        |
+ -----------------------------------------------------------
+
+Nodes that require a complete SysEx message must be able to assemble the
+complete message from the parts before processing the message.
+
+
 ## The PipeWire Daemon
 
 Nothing special is implemented for MIDI. Negotiation of formats
diff --git a/src/tools/pw-cat.c b/src/tools/pw-cat.c
index 17e6a9929..2a575979a 100644
--- a/src/tools/pw-cat.c
+++ b/src/tools/pw-cat.c
@@ -185,6 +185,7 @@ struct data {
 	struct {
 		FILE *file;
 		bool close;
+		bool first;
 	} sysex;
 	struct {
 		FILE *file;
@@ -1552,16 +1553,48 @@ static int sysex_play(struct data *d, void *dst, unsigned int n_frames, bool *nu
 	struct spa_pod_builder b;
 	struct spa_pod_frame f;
 	size_t size, to_read = n_frames - 64;
-	uint8_t bytes[to_read];
+	uint8_t data[to_read+2], *bytes;
+
+	bytes = &data[1];
+	size = fread(bytes, 1, to_read, d->sysex.file);
+
+	if (size != to_read) {
+		if (ferror(d->sysex.file))
+			return -EIO;
+	}
+	if (feof(d->sysex.file)) {
+		if (size == 0)
+			return 0;
+		if (bytes[size-1] != 0xf7) {
+			bytes[size] = 0xf7;
+			size += 1;
+		}
+	} else {
+		if (bytes[size-1] != 0xf0) {
+			bytes[size] = 0xf0;
+			size += 1;
+		}
+	}
+	if (d->sysex.first) {
+		if (bytes[0] != 0xf0) {
+			bytes = &data[0];
+			bytes[0] = 0xf0;
+			size += 1;
+		}
+		d->sysex.first = false;
+	} else {
+		if (bytes[0] != 0xf7) {
+			bytes = &data[0];
+			bytes[0] = 0xf7;
+			size += 1;
+		}
+	}
 
 	spa_zero(b);
 	spa_pod_builder_init(&b, dst, n_frames);
 
 	spa_pod_builder_push_sequence(&b, &f, 0);
 	spa_pod_builder_control(&b, 0, SPA_CONTROL_Midi);
-
-	size = fread(bytes, 1, to_read, d->sysex.file);
-
 	spa_pod_builder_bytes(&b, bytes, size);
 	spa_pod_builder_pop(&b, &f);
 
@@ -1590,6 +1623,7 @@ static int setup_sysex(struct data *data)
 
 	data->fill = sysex_play;
 	data->stride = 1;
+	data->sysex.first = true;
 
 	return 0;
 }