Yup! You could do that with a number of other players too.
Notsofatso, nsfplay, nezplug++, audio overload, nsfplayer/live (I think), possibly some more...

i was thinking... for recording.... you can isolate each channel in musicbox. is it possible to convert each channel into a .wav and run those through some other program, adding effects, eq'ing and mastering?

also this might help Saskrotch:
you can build a simple conversion box. it would take the the audio out from your ds and sum it all into one channel and go to a stereo out so that it will be mono and play in both ears.

                                   |========= L=====|                                                  |===========|== L== | Audio out  L]
   ---[ audio in jack}====|                               |============= mono=======|                                   |                      [ }------ output -----
                                   |========= R=====|                                                  |===========|== R==| Audio out  R ]

     standard                                                                                                                                           StandardStereo
     head phone plug                                                                                                                                     Headphones out put
 

super simple to make and house in a small container. i am not sure you even need to grnd the thing. the device wouldn't be limited to just your DS. it should work across the board. I was thinking about building one for my nes. right now i have the stereo mod going on and if i built this i can listen to the summed up version of each track. that way it isnt annoying as shit to listen to my nsf's with headphones.

probably could even add a simple volume pot to the mono wire. that way you can adjust the volume easy.

good luck nigel!

Hehe.

We can assume he wants to stick to the NSF format for a personal reason, so it makes sense to give advice with that in mind. Otherwise, I'm sure he knows he has plenty more options if he's okay with using wavs or mp3s. Who knows, perhaps beyond his own music he wants a larger NSF library that's easily accessible. Sampling everything would suck!

think of mp3s as CYCLE ACCURATE NSF EMULATION.

cuz thats cheating. chiptune is all about doing things the hard way..... the ridiculously hard way...

moonshell is just a player..
why dont you record your nfs using a laptop or NES, and than just play live your mp3s from the DS?

@bleo, no the proteinDS sample folder can be in whatever the NDS file is. You can have it in your root or in a folder but the other folders such as Sample, Record, Voice, etc. Need to be with the proteinds.nds.

@Saskroatch, did you tried DS Organize?. I think it dont do PAN of the sound. I tested with the same NSF in moonshell and DS Organize and the moonshell do the pan aswell but the DS Organize dont do it.

hope that help! XD

Shit, nigel.  I just snooped around in moonshell's config files and I see nothing.  That's blowy.

FWIW, the protein folder HAS to be in the root dir to work. I'm guessing you probably tried that, but I figure I'd throw that out there just in case.

Dingoo's are cheap and I think they would do the trick

all pulse channels would be quieter then the rest, since the tri/noise/dpcm would be doubled up. i already write my nsfs with quiet pulse channels so the triangle is as loud as possible

Couldn't you just pan both channels center using your mixer if you're doing it live?

no idea, in my version they show up as like

whatever.nsf:0
whatever.nsf:1
whatever.nsf:2
etc

yah, but howthefuck you jump to the next track!?? ( i mean on 2.0+ sorry XD)... i cant find teh way jump to the next track as the old version (i have 1.71).

Hope the DS organize helped you.

i'm using 1.6 right now, it supports multi track nsfs

cant get protein to work on my flash card (even after dldi patching)

Saskroach, the moonshell use notsofatso as a plug-in (if i remember), so i think thats why is like that, is the default config/setup. Dont know if you can modify that. if you own a DS/DSLITE you can try DS Organize (some ppl just hate it) but it play few chip formats, as sid, sndh (really shittie), mod, and of course nsf. Some how the DS Organize dont work fine on my R4i.
here is the link
http://www.dragonminded.com/?loc=ndsdev/DSOrganize

I mainly use the old moonshell version to playback nsf and sap files. The new moonshell dont let to go forward or backward in a multi-track nsf, or i just dont know how. But seens like there is not option in any of the moonshell version

@herr_prof, i suppose he dont want to convert each file to wav/mp3. And if you dont own a cart with SDHC support, then you will run out of space really fast! XD...