140         NoteInfo* noteInfo = FindNoteInfo( channelIndex );  in NoteOn()  local
141         if ( noteInfo != NULL )  in NoteOn()
143             Channel* channel = noteInfo->channel;  in NoteOn()
149                 noteInfo->key = key;  in NoteOn()
153             noteInfo->channel = NULL;  in NoteOn()
160     NoteInfo* noteInfo = FindFreeNoteInfo();  in NoteOn()  local
161     NW_NULL_ASSERT( noteInfo );  in NoteOn()
163     noteInfo->channel = channel;  in NoteOn()
164     noteInfo->channelIndex = channelIndex;  in NoteOn()
165     noteInfo->key = key;  in NoteOn()
180         NoteInfo* noteInfo = FindNoteInfo( channelIndex, key );  in NoteOff()  local
181         if ( noteInfo == NULL ) break;  in NoteOff()
183         noteInfo->channel->SetLength( 0 );  in NoteOff()
184         track->UpdateChannelRelease( noteInfo->channel );  in NoteOff()
185         noteInfo->channel = NULL;  in NoteOff()