Hello! Sorry for the previous letter. The problem was fixed by pointing jackd to the device hw:0 . Now it does not crash - but nor does it output any sound! I run all of the following as root, in this order, from different terminal windows: jackd -d alsa -d hw:0 fluidsynth --verbose -a jack YamahaGrand_Adcock.SF2 noteedit I use NoteEdit because I have already tested it with fluidsynth (but without jack). The --verbose option for fluidsynth was added to diagnose the problem. So, I play something on noteedit - with all the default settings, in the same way as before (with alsa, when it worked). And I see noteon and noteoff lines in fluidsynth. But no sound is output! Tried aplay to the device hw:0 for a test. It works fine. So, the problem seems to be with either jack, or fluidsynth jack support. Thanks in advance for any tips on fixing this! Yours, Mikhail Ramendik
