I thought that it would be better if dosbox.conf was arranged in this way (a more clear way):

[dosbox] \ the most frequently accesed options at the top
[cpu] \ (they affect compatibility)
[dos] /
[autoexec] /

[sdl] \ the look of the game
[render] /

[log] \ debugger
[debug] /

[mixer] \ sound
[midi] \
[sblaster] |
[gus] /
[speaker] /

[ipx] the rest
[modem]
[printer]

[bios]

I know I can change it myself which I did, but it may be also more clear for newbies