Thank you, builds without issues on Arch Linux. Running it works too, but I didn't test it. Jack audio IOs and Jack MIDI out are shown by QjackCtl. Are you aware that Rakarrack provides a relatively good working monophonic MIDI converter? JFTR I got those messages: $ ./GuitarSynth2 jack_client_new: deprecated Samplerate 44100 Buffersize 256 QObject::connect: No such slot GSEngine::setInputGain(int) QObject::connect: (sender name: 'InputVol') QObject::connect: No such slot GSEngine::setOutputGain(int) QObject::connect: (sender name: 'OutputVol') Regards, Ralf _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user