I have tested the new packages now: https://www.joonet.de/sources/timidity/debian_buster/timidity_2.14.0-9~bpo10u1_amd64.deb https://www.joonet.de/sources/timidity/debian_buster/timidity-daemon_2.14.0-9~bpo10u1_all.deb
All looks fine, the system daemon is deactivated and only the user daemon running. The sound is working. Cheers karsten