Boss BR-1180 Owner's Manual page 126

Synchronizing with MIDI devices
* You can record up to approximately 4000 eighth notes (about
500 measures in 4/4). Recording stops automatically once this
limit is surpassed.
Recording of the MIDI clock stops automatically when
playback on the external sequencer finishes, and the top
screen returns to the display.
This completes creation of the sync track.
* The created sync track is saved together with the current song
when the song is saved.
You can record only one sync track per song.
5. Change the MIDI cable connections as shown below.
fig.R17-03
MIDI
Sequencer
6. Press [UTILITY].
7. Use [CURSOR] to move the cursor to "SYNC," then
press [ENTER].
The sync parameter settings screen appears.
8. Use [CURSOR] to move the cursor to "Source," then
rotate the TIME/VALUE dial to select "SYNC TRACK."
TEMPO MAP:
The rhythm arrangement's original tempo map is used.
SYNC TRACK:
The sync track is used.
* When no sync track is created, "SYNC TRACK" cannot be
selected.
* When "SYNC TRACK" is selected, then even if you edit the
tempo map in the Rhythm Arrangement screen, the tempo
map settings are ignored.
* The sync track can be shared by any rhythm arrangement.
126
MIDI IN
MIDI OUT
9. Follow the instructions in "Synchronizing the
performance of an external MIDI sequencer to the BR-
1180/1180CD (Master)" to synchronize with the MIDI
sequencer.