gm_expression     701 sound/core/seq/seq_midi_emul.c 	chan->gm_expression = 127;
gm_expression      52 sound/drivers/opl3/opl3_midi.c 	volume = (vel * chan->gm_volume * chan->gm_expression) / (127*127);
gm_expression     376 sound/drivers/opl4/opl4_synth.c 	att += snd_opl4_volume_table[voice->chan->gm_expression & 0x7f];