I know it is possible to make custom sound tags for buildings/units/civs (ive seen it done) but I could never duplicate it with the correct results
So I did a "trick" to use existing taglines and infos... but creating new sound files...
During my experimentations I discovered that there are plenty of sound files in the Tutorial Folder (path = Assets\Sounds\Tutorial folder)
since these sounds are not used unless you load the tutorial mod ....I decided to use these taglines to make my own custom sounds for stuff
(I use them in my mod.... and since you cant load 2 different mods.... you have no problem of interference of common tagline/sound files

)
so to make a long story short I backtracked the taglines to these files:
AudioDefines.xml
Audio2dScripts.xml
(path = Assets\XML\Audio)
basically fine the names of the Sound files in the AudioDefines.xml with the TUTORIAL TAGLINE...
For Example:
Find Tutorial tagline AudioDefines.xml:
SND_TUTORIAL_INTRODUCTION_0
note they have this line below it:
Sounds/Tutorial/Tut_01A
Note the Tut_01A (sound file name) for later
then go to Audio2dScripts.xml
and find the SND_TUTORIAL_INTRODUCTION_0 in here
it will have the Script ID:
AS2D_TUTORIAL_INTRODUCTION_0
now this AS2D_TUTORIAL_INTRODUCTION_0 tagline info is can be placed in any Building/Unit/ even Civilization diplomacy sounds
Now whatever sound you want to have this sound to be
move a sound file (can be .wav or .mp3) in this NEWLY CREATED PATH in your GameMod (whatever mod you are using...or create one

)
path = (YourGameMod)\Assets\Sounds\Tutorial folder
and place that sound file to:
rename to file to Tut_01A and you are good to go
you can replace all the TUT sounds files and repeat this procedure (until you run out of TUT sound files

)
REMEMBER to replace ONLY tutorial sounds (or your get some weird sounds playing for the wrong noise in the game)
The ONLY Catch is that the diplomacy window sounds are looping (until you close em) and the tut sounds are NOT!
To solve this I just edited the soundfile where I put a song in 3 times in the same file so I have over 9 minutes of music... therefore you the music will continue to play for 9 minutes before there is no more sounds but my diplomacy window usually only stays open for 2 mins or less
there is an easier way to add custom sounds but I have not figured it out yet...and as you pointed out there is not UPDATED Tutorial out there yet....
the advantages of this "method" all the information is already setup... you just have to create a new sound file and rename it to existing tag info...
THIS INFO is not for WARLORDS Expansion!
Hope that helps
