On Sat, May 30, 2009 at 3:46 PM, Gabriel M. Beddingfield
<gabriel(a)teuton.org> wrote:
  Does sooperlooper respond to Song Position Pointer
(0xF2) and/or MIDI Continue
 (0xFB)?  You may be able to sync time using these instead of Song Start (0xFA).
  Song Position Pointer sends a 14-bit song position, followed by a MIDI
 Continue which means ("start playing at that spot on the next clock tick").
 The
 14-bit song position is in "MIDI beats" since the beginning of the song.  6
MIDI
 Clocks == 1 MIDI beat. 
SL does not respond to SPP, but it probably should.
  Also, I noticed that sooperlooper is determining tempo
by some manner of rolling
 average calculation.  (Maybe it doesn't, but that's the way it *acts*.)  If so,
 that makes it even harder to get sooperlooper to sync to a downbeat. 
It does indeed determine the displayed tempo by a rolling average, but
for sync purposes it responds immediately upon receipt of the relevant
clock ticks.
jlc