I’m using Fedora 38, which doesn’t compile Bluez with MIDI Bluetooth enabled (which would be appreciated btw), so I compiled it myself installing the dependencies, downloading the source code from www.bluez.org, I configured it like this
sudo ./configure \ --enable-midi \ --enable-sixaxis \ --enable-cups \ --enable-nfc \ --enable-mesh \ --enable-hid2hci \ --enable-testing \ --with-systemdsystemunitdir=/etc/systemd/system
then I did
sudo make install and rebooted.
After that when I connected my MIDI keyboard over Bluetooth it started showing up on
aseqdump -l but when I do
aseqdump -p <port_of_midi_keyboard> there doesn’t seem to be any communication going on.