polymidi 2 3200 2400 output_0 1602.000000 1187.000000 false Internal output midi_note_in_0 1359.000000 1167.000000 false Internal midi_note_in square_fa_oa_0 1480.000000 1175.000000 false LADSPA square_fa_oa square_1643.so midi_note_in_0 Frequency square_fa_oa_0 Frequency square_fa_oa_0 Output output_0 out