>IIRC, old SoundBlasters use a different (than mpu) method for talking to the MIDI
>port, so you get a different MIDI attachment.

so it's "normal"?  if it is, it's weird.  with that particular midi
attachment, i get three:

sb0 at isa0 port 0x220-0x237 irq 5 drq 1: dsp v3.01
audio0 at sb0: half duplex, mmap, independent
midi0 at sb0: SB MIDI UART
opl0 at sb0: model OPL3
midi1 at opl0: SB Yamaha OPL3
pcppi0 at isa0 port 0x61
midi2 at pcppi0: PC speaker
spkr0 at pcppi0
sysbeep0 at pcppi0

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