Hi, I've found a bug in the SGI version 0.31 pitchbend i wrong. Make a change in s_sgi.c wrong line: inmidi_pitchbend(i, channel, (( b1 << 7) + b2 )); right line: inmidi_pitchbend(i, channel, (( b2 << 7) + b1 )); Best regards, --PLu