I have disabled the ALSA sequencer by adding the line
install snd-seq /bin/true
in the modprobe config files. If I try to start AMS it prints the message
ALSA lib seq_hw.c:457:(snd_seq_hw_open) open /dev/snd/seq failed: No such file or directory
Error opening ALSA sequencer.
and then exits. It would be nice to be able to use the audio parts even if the ALSA sequencer is disabled.