First things first: yes you are right there are only 3 channels used in my file.
Ch1-should be bass,Ch2-keyboard (clavinett),Ch10 drums (CH10 is midi standard for
drumkits,but you can have drums/percussion on any channel,if you want)
As far as I know windows uses Roland sounds to produce the sounds you hear
when,for example,deleting a file or anything else that has a sound by default.
So it must be a part of the OS.
I don't know what an LSD importer is,sorry.
FLS uses some built in MIDI sounds that can be found somewhere,too.
There is a FLS midi tutorial somewhere,maybe that can be of some help here.
http://www.musictech.net/2013/08/fl-studio-tutorial-midi-1/Midi is a standard convention to make music interchangeable and sound the same
on another instrument than the one it was originally done with.
If you want to change an instrument you have to find the graphic display of the track
and change it there.For example on my sequencer I have to select the track and then
go to edit mode,then the track is displayed as notes with the position in time like
C1 - 0-000 length strength. When you have found that display mode in FLS
you will see the first value displayed is the sound bank and
instrument.You can
change it there or you could delete it and set a midi sound in the appropriate
section of FLS.Probably called voice or so.
Furthermore FLS should have listings of the voice banks and note assignments
somewhere,I'm
shure.My sequencer has a small booklet with all that stuff.
Should take a while to get familiar with the midi concept.But once you got it
it's pretty easy.
If you add tracks/channels in midi mode and assign the used voice the next
person will have it,too,as long as midi is used.Later on when mixing and
hopefully converting to vst sounds,which should be one of the last steps
taken,the next person can only add via multitrack recording.
The question is can FLS convert the midi sounds to vst? I don't know anything
about that unfortunately.
All that stuff can be really confusing,I've been there and still am.
Hope that helps a little,J.