Hi
 I am not sure, whether this is already on Murray task list, but I'd like
 to mention it here:
 If the arpeggio/sequencer is set to MIDI Clock, the start/stop function
 still is only at the "start/stop" button of the JX-3P. The clock
 division form MIDI-clock to 16th notes starts withthe first tick
 received and hass nothing to do with the timing of other MIDI clock
 slave gear like drum machines or other sequencers.
 I think the internal clock which is sent to the
 sequencer/arpeggiator/pattern should be started by the MIDI start
 command and stopped by the MIDI stop command also.
 And the division /6 (=16th notes) /24 (=quarternotes) /96 (=each bar)
 MUST be reset with by the start command (internal and external start
 command).
 Additionally I could imagine a Mungo-Sync-like(*) start/stop function (I
 already wrote this to murray in the early planning phase):
 With clock select set to MIDI-clock the start/stop button might work
 like this:
 * MIDI Start -> Resets and Starts the Sequencer/Arpeggiator; also an
 internal counter is reset and counts 16 times on 16th notes up and
 resets then in a 4/4-bar loop.
 * pressing Stop(Start)-Button -> stops the clock which is sent
 internally to the sequencer/arpeggiator/pattern at the next reset of the
 internal counter (vulgo at the next 4/4 bar).
 * pressing Start(Stop)-Button again -> starts the interal clock at the
 next reset of the internal counter (vulgo at the next 4/4 bar).
 * MIDI Stop -> Stops the Sequencer/Arpeggiator.
 Of course this is limited to 4/4-bar music, but I think 95% of the
 customers will like it extremely.
 Whether the start/stop button acts in midi sync mode as normal
 start/stop or as Mungo-Sync-button, should be selectable with a general
 function setting.
 Florian
 (*)For Mungo-Sync see
http://mungo.com.au/sync2.html