Ok, loaded them together now.
Bad news again I'm afraid :(
[root@localhost ~]# ls /lib/modules/2.6.18-rc3/kernel/sound/core/seq/
instr snd-seq-dummy.ko snd-seq-midi-emul.ko snd-seq-virmidi.ko
oss snd-seq-instr.ko snd-seq-midi-event.ko
snd-seq-device.ko snd-seq.ko snd-seq-midi.ko
[root@localhost ~]# service alsasound stop
Shutting down sound driver: done
[root@localhost ~]# lsmod | grep snd
snd_page_alloc 10632 0
[root@localhost ~]# service alsasound start
Starting sound driver: snd-hda-intel done
[root@localhost ~]# modprobe snd-rawmidi
[root@localhost ~]# alsamixer
... no changes to controls
[root@localhost ~]# modprobe snd-seq-midi
[root@localhost ~]# alsamixer
... no changes to controls
By the way, I discovered that alsaconf is creating
my /etc/modprobe.d/sound (instead of appending to /etc/modprobe.conf).
JeeBee.